@misc{yaacoub2026branchingpathsstatisticsconfined,
archiveprefix = {arXiv},
author = {Daniel Yaacoub and Gaëtan Brunetto and Stéphane Blanco and Richard Fournier and Gerjan Hagelaar and Jean-François Cornet and Jérémi Dauchet and Thomas Vourc'h},
eprint = {2604.01292},
note = {https://arxiv.org/abs/2604.01292},
primaryclass = {physics.flu-dyn},
title = {Branching Paths Statistics for confined Flows : Adressing Navier-Stokes Nonlinear Transport},
year = {2026}
}
@misc{yaacoub2026galacticclustersplasmassingle,
archiveprefix = {arXiv},
author = {Daniel Yaacoub and Gaëtan Brunetto and Stéphane Blanco and Richard Fournier and Gerjan Hagelaar},
eprint = {2604.01458},
note = {https://arxiv.org/abs/2604.01458},
primaryclass = {physics.plasm-ph},
title = {From Galactic Clusters to Plasmas in a Single Monte Carlo: Branching Paths Statistics for Poisson-Vlasov/Boltzmann},
year = {2026}
}
@unpublished{yaacoub2025nonlineardriftfeynmankactheory,
archiveprefix = {arXiv},
author = {Daniel Yaacoub and Stéphane Blanco and Jean-François Cornet and Jérémi Dauchet and Richard Fournier and Thomas Vourc'h},
eprint = {2412.08215},
note = {https://arxiv.org/abs/2412.08215},
primaryclass = {cond-mat.stat-mech},
title = {Nonlinear Drift in Feynman-Kac Theory: Preserving Early Probabilistic Insights},
year = {2025}
}
@article{villemin2025opto,
author = {Villemin, Thomas and Yaacoub, Daniel and Blanco, St{\'e}phane and Claverie, R{\'e}my and Cornet, Jean-Fran{\c{c}}ois and Dauchet, J{\'e}r{\'e}mi and Farges, Olivier and Fournier, Richard and Parent, Gilles and Vaillon, Rodolphe and Vourc'h, Thomas},
doi = {10.1088/1361-651x/ae1310},
journal = {Modelling and Simulation in Materials Science and Engineering},
number = {8},
pages = {085003},
title = {Opto-electrical model of a single-junction photovoltaic cell using Monte Carlo methods},
volume = {33},
year = {2025}
}
@article{he2025simultaneous,
author = {He, Zili
and Vinatier, Sandrine
and Eymet, Vincent
and Forest, Vincent
and B{\'e}zard, Bruno
and Rannou, Pascal
and Rodriguez, S{\'e}bastien
and Marcq, Emmanuel
and Fournier, Richard
and Blanco, St{\'e}phane
and Mourtaday, Nada
and Nyffenegger-P{\'e}r{\'e}, Yaniss
and Lebonnois, S{\'e}bastien
and M{\"a}{\"a}tt{\"a}nen, Anni},
doi = {10.1016/j.jqsrt.2025.109722},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {109722},
publisher = {Elsevier},
title = {Simultaneous estimation of radiance and its sensitivities to radiative properties in a spherical-heterogeneous atmospheric radiative transfer model by Monte Carlo method: Application to Titan},
volume = {350},
year = {2025}
}
@article{ibarrart2025advection,
author = {Ibarrart, Loris and Blanco, St{\'e}phane and Caliot, Cyril and Dauchet, J{\'e}r{\'e}mi and Eibner, Simon and El Hafi, Mouna and Farges, Olivier and Forest, Vincent and Fournier, Richard and Gautrais, Jacques and Konduru, Raj and Penazzi, L{\'e}a and Tr{\'e}gan, Jean-Marc and Vourc'h, Thomas and Yaacoub, Daniel},
doi = {10.1371/journal.pone.0330604},
journal = {PLoS One},
number = {9},
pages = {e0330604},
publisher = {Public Library of Science San Francisco, CA USA},
title = {Advection, diffusion and linear transport in a single path-sampling Monte-Carlo algorithm: getting insensitive to geometrical refinement},
volume = {20},
year = {2025}
}
@article{sahim2025unbiased,
author = {Sahim, Abderrahim and Carrier, Marion and El Hafi, Mouna and Eibner, Simon and Nyffenegger-P{\'e}r{\'e}, Yaniss and Blanco, St{\'e}phane and Fournier, Richard},
doi = {10.1016/j.cej.2025.165009},
journal = {Chemical Engineering Journal},
pages = {165009},
publisher = {Elsevier},
title = {Unbiased backward Monte Carlo method for addressing stiff chemical kinetics},
volume = {520},
year = {2025}
}
@article{mourtaday2024monte,
author = {Mourtaday, Nada and Bati, M{\'e}gane and Blanco, St{\'e}phane and Dufresne, Jean-Louis and El Hafi, Mouna and Eymet, Vincent and Forest, Vincent and Fournier, Richard and Gautrais, Jacques and Lapeyre, Paule and Nyffenegger-P{\'e}r{\'e}, Yaniss and Villefranque, Najda},
doi = {10.1016/j.jqsrt.2024.109123},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {109123},
publisher = {Elsevier},
title = {Monte Carlo simulation of atmospheric radiative forcings using a path-integral formulation approach for spectro-radiative sensitivities},
volume = {327},
year = {2024}
}
@unpublished{lea_electronique,
author = {Penazzi, Lea and Castelan, Anne and Blanco, Stephane and Caliot, Cyril and Coustet, Christophe and El Hafi, Mouna and Fournier, Richard and Fradin, Jean-Pierre},
note = {{\it hal-04448075f}},
title = {Functional estimation of the junction temperature with Monte Carlo method for electronic module cooling},
year = {2024}
}
@article{nyffenegger2024spectrally,
author = {Nyffenegger-P{\'e}r{\'e}, Yaniss
and Armante, Raymond
and Bati, M{\'e}gane
and Blanco, St{\'e}phane
and Dufresne, Jean-Louis
and El Hafi, Mouna
and Eymet, Vincent
and Forest, Vincent
and Fournier, Richard
and Gautrais, Jacques
and Lebrun, Rapha{\"e}l
and Mellado, Nicolas
and Mourtaday, Nada
and Paulin, Mathias},
doi = {10.1073/pnas.2315492121},
journal = {Proceedings of the National Academy of Sciences},
number = {5},
pages = {e2315492121},
publisher = {National Academy of Sciences},
title = {Spectrally refined unbiased Monte Carlo estimate of the Earth's global radiative cooling},
volume = {121},
year = {2024}
}
@article{he2024three,
author = {He, Zili and Lapeyre, Paule and Blanco, St{\'e}phane and D’eon, Eugene and Eibner, Simon and El Hafi, Mouna and Fournier, Richard and Roger, Maxime},
doi = {10.1016/j.jqsrt.2024.109104},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {109104},
publisher = {Elsevier},
title = {Three approaches on estimating geometric sensitivities in radiative transfer with Monte Carlo},
volume = {326},
year = {2024}
}
@article{cyril_energy,
author = {Caliot, Cyril and d'Alen{\c{c}}on, Louis and Blanco, St{\'e}phane and Forest, Vincent and Fournier, Richard and Hourdin, Fr{\'e}d{\'e}ric and Retailleau, Florent and Schoetter, Robert and Villefranque, Najda},
doi = {10.1016/j.ijheatmasstransfer.2023.125139},
journal = {International Journal of Heat and Mass Transfer},
pages = {125139},
title = {Coupled heat transfers resolution by Monte Carlo in urban geometry including direct and diffuse solar irradiations},
volume = {222},
year = {2024}
}
@article{PENAZZI2024108911,
author = {Penazzi, L{\'e}a and Blanco, St{\'e}phane and Caliot, Cyril and Coustet, Christophe and El Hafi, Mouna and Fournier, Richard and Gautrais, Jacques and Golijanek-J{\k{e}}drzejczyk, Anna and Sans, Morgan},
doi = {10.1016/j.cpc.2023.108911},
issn = {0010-4655},
journal = {Computer Physics Communications},
keywords = {Propagator, Monte Carlo method, Large geometric models, Coupled heat transfer},
pages = {108911},
title = {Path integrals formulations leading to propagator evaluation for coupled linear physics in large geometric models},
url = {https://www.sciencedirect.com/science/article/pii/S0010465523002564},
volume = {294},
year = {2024}
}
@article{bati2023coupling,
author = {Bati, M{\'e}gane and Blanco, St{\'e}phane and Coustet, Christophe and Eymet, Vincent and Forest, Vincent and Fournier, Richard and Gautrais, Jacques and Mellado, Nicolas and Paulin, Mathias and Piaud, Benjamin},
doi = {10.1145/3592121},
journal = {ACM Transactions on Graphics (SIGGRAPH-2023)},
number = {4},
pages = {1--20},
title = {Coupling Conduction, Convection and Radiative Transfer in a Single Path-Space: Application to Infrared Rendering},
volume = {42},
year = {2023}
}
@article{dauchet2023wave,
author = {Dauchet, J{\'e}r{\'e}mi and Charon, Julien and Blanco, St{\'e}phane and Brunel, Laurent and Cornet, Jean-Fran{\c{c}}ois and Coustet, Christophe and El Hafi, Mouna and Eymet, Vincent and Forest, Vincent and Fournier, Richard and Gros, Fabrice and Piaud, Benjamin and Terr{\'e}e, Guillaume and Vourc'h, Thomas},
doi = {10.1364/OL.500487},
journal = {Optics Letters},
number = {18},
pages = {4909--4912},
publisher = {Optica Publishing Group},
title = {Wave-Scattering processes: path-integrals designed for the numerical handling of complex geometries},
volume = {48},
year = {2023}
}
@article{he2023monte,
author = {He, Zili and Lapeyre, Paule and Blanco, Stephane and Eibner, Simon and El Hafi, Mouna and Fournier, Richard},
doi = {10.1016/j.solener.2023.02.013},
journal = {Solar Energy},
pages = {9--29},
publisher = {Elsevier},
title = {Monte-Carlo estimation of geometric sensitivities in Solar Power Tower systems of flat mirrors},
volume = {253},
year = {2023}
}
@article{tregan2023coupling,
author = {Tregan, Jean Marc
and Amestoy, Jean Luc
and Bati, M{\'e}gane
and B{\'e}zian, Jean-Jacques
and Blanco, St{\'e}phane
and Brunel, Laurent
and Caliot, Cyril
and Charon, Julien
and Cornet, Jean-Francois
and Coustet, Christophe
and d'Alen{\c{c}}on, Louis
and Dauchet, Jeremi
and Dutour, Sebastien
and Eibner, Simon
and El Hafi, Mouna
and Eymet, Vincent
and Farges, Olivier
and Forest, Vincent
and Fournier, Richard
and Galtier, Mathieu
and Gattepaille, Victor
and Gautrais, Jacques
and He, Zili
and Hourdin, Fr{\'e}d{\'e}ric
and Ibarrart, Loris
and Joly, Jean-Louis
and Lapeyre, Paule
and Lavieille, Pascal
and Lecureux, Marie-Helene
and Lluc, Jacques
and Miscevic, Marc
and Mourtaday, Nada
and Nyffenegger-P{\'e}r{\'e}, Yaniss
and Pelissier, Lionel
and Penazzi, Lea
and Piaud, Benjamin
and Rodrigues-Viguier, Cl{\'e}ment
and Roques, Gisele
and Roger, Maxime
and Saez, Thomas
and Terr{\'e}e, Guillaume
and Villefranque, Najda
and Vourc'h, Thomas
and Yaacoub, Daniel},
doi = {10.1371/journal.pone.0283681},
journal = {PLOS ONE},
number = {4},
pages = {e0283681},
publisher = {Public Library of Science},
title = {Coupling radiative, conductive and convective heat-transfers in a single Monte Carlo algorithm: A general theoretical framework for linear situations},
volume = {18},
year = {2023}
}
@article{Najda_science_advances,
abstract = {Urban areas are a high-stake target of climate change mitigation and adaptation measures. To understand, predict, and improve the energy performance of cities, the scientific community develops numerical models that describe how they interact with the atmosphere through heat and moisture exchanges at all scales. In this review, we present recent advances that are at the origin of last decade’s revolution in computer graphics, and recent breakthroughs in statistical physics that extend well-established path-integral formulations to nonlinear coupled models. We argue that this rare conjunction of scientific advances in mathematics, physics, computer, and engineering sciences opens promising avenues for urban climate modeling and illustrate this with coupled heat transfer simulations in complex urban geometries under complex atmospheric conditions. We highlight the potential of these approaches beyond urban climate modeling for the necessary appropriation of the issues at the heart of the energy transition by societies. Statistical physics and computer graphics open new ways for thinking through energy transfers in cities under climate change.},
author = {Najda Villefranque and Frédéric Hourdin and Louis d’Alençon and Stéphane Blanco and Olivier Boucher and Cyril Caliot and Christophe Coustet and Jérémi Dauchet and Mouna El Hafi and Vincent Eymet and Olivier Farges and Vincent Forest and Richard Fournier and Jacques Gautrais and Valéry Masson and Benjamin Piaud and Robert Schoetter },
doi = {10.1126/sciadv.abp8934},
eprint = {https://www.science.org/doi/pdf/10.1126/sciadv.abp8934},
journal = {Science Advances},
number = {27},
pages = {eabp8934},
title = {The teapot in a city : A paradigm shift in urban climate modeling},
url = {https://www.science.org/doi/abs/10.1126/sciadv.abp8934},
volume = {8},
year = {2022}
}
@article{lapeyre2022physical,
author = {Lapeyre, Paule and Blanco, St{\'e}phane and Caliot, Cyril and Coustet, Christophe and d'Eon, Eugene and Fournier, Richard and He, Zili and Mourtaday, Nada Chems},
journal = {arXiv preprint arXiv:2206.05167},
title = {A physical model and a Monte Carlo estimate for the spatial derivative of the specific intensity},
volume = {},
year = {2022}
}
@article{terree2022addressing,
author = {Terr{\'e}e, Guillaume and El Hafi, Mouna and Blanco, St{\'e}phane and Fournier, Richard and Dauchet, J{\'e}r{\'e}mi and Gautrais, Jacques},
doi = {10.1103/PhysRevE.105.025305},
journal = {Physical Review E},
number = {2},
pages = {025305},
publisher = {APS},
title = {Addressing the gas kinetics Boltzmann equation with branching-path statistics},
volume = {105},
year = {2022}
}
@article{villefranque2021process,
author = {Villefranque, Najda and Blanco, St{\'e}phane and Couvreux, Fleur and Fournier, Richard and Gautrais, Jacques and Hogan, Robin James and Hourdin, Fr{\'e}d{\'e}ric and Volodina, Victoria and Williamson, Daniel},
doi = {10.1029/2020ms002423},
journal = {Journal of Advances in Modeling Earth Systems},
number = {4},
pages = {e2020MS002423},
title = {Process-based climate model development harnessing machine learning: III. The Representation of Cumulus Geometry and their 3D Radiative Effects},
volume = {13},
year = {2021}
}
@article{el2021three,
author = {El Hafi, Mouna and Blanco, Stephane and Dauchet, J{\'e}r{\'e}mi and Fournier, Richard and Galtier, Mathieu and Ibarrart, Loris and Tregan, Jean-Marc and Villefranque, Najda},
doi = {10.1016/j.jqsrt.2020.107402},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {107402},
publisher = {Elsevier},
title = {Three viewpoints on null-collision Monte Carlo algorithms},
volume = {260},
year = {2021}
}
@article{lapeyre2020monte_a,
author = {Lapeyre, Paule and Blanco, Stephane and Caliot, Cyril and Dauchet, J{\'e}r{\'e}mi and El Hafi, Mouna and Fournier, Richard and Farges, Olivier and Gautrais, Jacques and Roger, Maxime},
doi = {10.1016/j.jqsrt.2020.107022},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {107022},
publisher = {Elsevier},
title = {Monte-Carlo and sensitivity transport models for domain deformation},
volume = {251},
year = {2020}
}
@article{blaineau2019experimental,
author = {Blaineau, Baptiste and Dutour, S{\'e}bastien and Callegari, Thierry and Lavieille, Pascal and Miscevic, Marc and Blanco, St{\'e}phane and Schlegel, Benoit and Bertin, Yves and Benselama, Adel},
doi = {10.1016/j.expthermflusci.2019.03.017},
journal = {Experimental Thermal and Fluid Science},
pages = {144--152},
publisher = {Elsevier},
title = {Experimental investigation of a dielectric liquid-vapor interface between two vertical planar electrodes: Influence of the DC electric field and temperature},
volume = {105},
year = {2019}
}
@article{tregan2019convergence,
author = {Tregan, Jean-Marc and Blanco, St{\'e}phane and Dauchet, J{\'e}r{\'e}mi and El Hafi, Mouna and Fournier, Richard and Ibarrart, Loris and Lapeyre, Paule and Villefranque, Najda},
doi = {10.1016/j.jcp.2020.109463},
journal = {Journal of Computational Physics},
pages = {109463},
publisher = {Elsevier},
title = {Convergence issues in derivatives of Monte Carlo null-collision integral formulations: a solution},
volume = {413},
year = {2020}
}
@article{villefranque2019path,
author = {Villefranque, Najda and Fournier, Richard and Couvreux, Fleur and Blanco, St{\'e}phane and Cornet, C{\'e}line and Eymet, Vincent and Forest, Vincent and Tregan, Jean-Marc},
doi = {10.1029/2018ms001602},
journal = {Journal of Advances in Modeling Earth Systems},
number = {8},
pages = {2449--2473},
title = {A Path-Tracing Monte Carlo Library for 3-D Radiative Transfer in Highly Resolved Cloudy Atmospheres},
volume = {11},
year = {2019}
}
@article{azais2018traveling,
author = {Azais, Manon and Blanco, St{\'e}phane and Bon, Richard and Fournier, Richard and Pillot, Marie-H{\'e}l{\`e}ne and Gautrais, Jacques},
doi = {10.1371/journal.pone.0206817},
journal = {PloS one},
number = {12},
pages = {e0206817},
publisher = {Public Library of Science},
title = {Traveling pulse emerges from coupled intermittent walks: A case study in sheep},
volume = {13},
year = {2018}
}
@article{dauchet2018addressing,
abstract = {Monte Carlo is famous for accepting model extensions and model refinements up to infinite dimension. However, this powerful incremental design is based on a premise which has severely limited its application so far: a state-variable can only be recursively defined as a function of underlying state-variables if this function is linear. Here we show that this premise can be alleviated by projecting nonlinearities onto a polynomial basis and increasing the configuration space dimension. Considering phytoplankton growth in light-limited environments, radiative transfer in planetary atmospheres, electromagnetic scattering by particles, and concentrated solar power plant production, we prove the real-world usability of this advance in four test cases which were previously regarded as impracticable using Monte Carlo approaches. We also illustrate an outstanding feature of our method when applied to acute problems with interacting particles: handling rare events is now straightforward. Overall, our extension preserves the features that made the method popular: addressing nonlinearities does not compromise on model refinement or system complexity, and convergence rates remain independent of dimension.},
author = {Dauchet, J{\'e}r{\'e}mi and Bezian, Jean-Jacques and Blanco, St{\'e}phane and Caliot, Cyril and Charon, Julien and Coustet, Christophe and El Hafi, Mouna and Eymet, Vincent and Farges, Olivier and Forest, Vincent and Fournier, Richard and Galtier, Mathieu and Gautrais, Jacques and Khuong, Ana{\"i}s and Pelissier, Lionel and Piaud, Benjamin and Roger, Maxime and Terr{\'e}e, Guillaume and Weitz, Sebastian},
doi = {10.1038/s41598-018-31574-4},
journal = {Scientific reports},
number = {1},
pages = {13302},
publisher = {Nature Publishing Group},
title = {Addressing nonlinearities in Monte Carlo},
volume = {8},
year = {2018}
}
@article{reis2016effect,
author = {Reis, Felipe Miguel Mancio and Lavieille, Pascal and Blanco, St{\'e}phane and Miscevic, Marc},
doi = {10.1615/InterfacPhenomHeatTransfer.2017017460},
journal = {Interfacial Phenomena and Heat Transfer},
number = {1},
publisher = {Begel House Inc.},
title = {On the effect of the contacte angle hysteresis for small droplets on a wettability gradient surface},
volume = {4},
year = {2016}
}
@article{weitz2016monte,
author = {Weitz, Sebastian and Blanco, St{\'e}phane and Charon, Julien and Dauchet, J{\'e}r{\'e}mi and El Hafi, Mouna and Eymet, Vincent and Farges, Olivier and Fournier, Richard and Gautrais, Jacques},
doi = {10.1016/j.jcp.2016.08.036},
journal = {Journal of Computational Physics},
pages = {30--34},
publisher = {Elsevier},
title = {Monte Carlo efficiency improvement by multiple sampling of conditioned integration variables},
volume = {326},
year = {2016}
}
@article{fournier2016radiative,
abstract = {It was recently shown that null-collision algorithms could lead to grid-free radiative- transfer Monte Carlo algorithms that immediately benefit of computer-graphics tools for an efficient handling of complex geometries [1, 2]. We here explore the idea of extending the approach to heat transfer problems combining radiation, conduction and convection. This is possible as soon as the model can be given the form of a second-kind Fredholm equation. In the following pages, we show that this is quite straightforward at the stationnary limit in the linear case. The oral presentation will provide corresponding simulation examples. Perspectives will then be drawn concerning the extension to non-stationnary cases and non-linear coupling.},
author = {Fournier, Richard and Blanco, St{\'e}phane and Eymet, Vincent and El Hafi, Mouna and Spiesser, Christophe},
booktitle = {Journal of Physics: Conference Series},
doi = {10.1088/1742-6596/676/1/012007},
number = {1},
organization = {IOP Publishing},
pages = {012007},
title = {Radiative, conductive and convective heat-transfers in a single Monte Carlo algorithm},
volume = {676},
year = {2016}
}
@article{galtier2016radiative,
author = {Galtier, Mathieu and Blanco, Stephane and Dauchet, J{\'e}r{\'e}mi and El Hafi, Mouna and Eymet, Vincent and Fournier, Richard and Roger, Maxime and Spiesser, Christophe and Terr{\'e}e, Guillaume},
doi = {10.1016/j.jqsrt.2015.10.016},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {83--97},
publisher = {Elsevier},
title = {Radiative transfer and spectroscopic databases: A line-sampling Monte Carlo approach},
volume = {172},
year = {2016}
}
@article{charon2016monte,
author = {Charon, Julien and Blanco, Stephane and Cornet, Jean-Francois and Dauchet, Jeremi and El Hafi, Mouna and Fournier, Richard and Abboud, Mira Kaissar and Weitz, Sebastian},
doi = {10.1016/j.jqsrt.2015.10.020},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {3--23},
publisher = {Elsevier},
title = {Monte Carlo implementation of Schiff's approximation for estimating radiative properties of homogeneous, simple-shaped and optically soft particles: Application to photosynthetic micro-organisms},
volume = {172},
year = {2016}
}
@article{farges2015life,
author = {Farges, Olivier and B{\'e}zian, Jean Jacques and Bru, H{\'e}l{\`e}ne and El Hafi, Mouna and Fournier, Richard and Spiesser, Christophe},
doi = {10.1016/j.solener.2014.12.027},
journal = {Solar Energy},
pages = {57--62},
publisher = {Elsevier},
title = {Life-time integration using Monte Carlo Methods when optimizing the design of concentrated solar power plants},
volume = {113},
year = {2015}
}
@article{fede2015lattice,
author = {Fede, Pascal and Sofonea, Victor and Fournier, Richard and Blanco, Stephane and Simonin, Olivier and Lepout{\`e}re, Guillaume and Ambru{\c{s}}, Victor},
doi = {10.1016/j.ijmultiphaseflow.2015.07.004},
journal = {International Journal of Multiphase Flow},
pages = {187--197},
publisher = {Elsevier},
title = {Lattice Boltzmann model for predicting the deposition of inertial particles transported by a turbulent flow},
volume = {76},
year = {2015}
}
@article{Terree2015,
abstract = {In the field of first-return statistics in bounded domains, short paths may be defined as those paths for which the diffusion approximation is inappropriate. However, general integral constraints have been identified that make it possible to address such short-path statistics indirectly by application of the diffusion approximation to long paths in a simple associated first-passage problem. This approach is exact in the zero Knudsen limit ( Blanco S. and Fournier R., Phys. Rev. Lett. , 97 (2006) 230604). Its generalization to the low to intermediate Knudsen range is addressed here theoretically and the corresponding predictions are compared to both one-dimension analytical solutions and three-dimension numerical experiments. Direct quantitative relations to the solution of the Schwarzschild-Milne problem are identified.},
author = {Guillaume Terree and Stephane Blanco and Mouna El Hafi and Richard Fournier and Julien Yves Rolland},
doi = {10.1209/0295-5075/110/20007},
journal = {EPL (Europhysics Letters)},
number = {2},
pages = {20007},
title = {Diffusion approximation and short-path statistics at low to intermediate Knudsen numbers},
url = {http://stacks.iop.org/0295-5075/110/i=2/a=20007},
volume = {110},
year = {2015}
}
@article{Dauchet2015,
abstract = {Abstract A generic methodological chain for the predictive calculation of the light-scattering and absorption properties of photosynthetic microorganisms within the visible spectrum is presented here. This methodology has been developed in order to provide the radiative properties needed for the analysis of radiative transfer within photobioreactor processes, with a view to enable their optimization for large-scale sustainable production of chemicals for energy and chemistry. It gathers an electromagnetic model of light-particle interaction along with detailed and validated protocols for the determination of input parameters: morphological and structural characteristics of the studied microorganisms as well as their photosynthetic-pigment content. The microorganisms are described as homogeneous equivalent-particles whose shape and size distribution is characterized by image analysis. The imaginary part of their refractive index is obtained thanks to a new and quite extended database of the in vivo absorption spectra of photosynthetic pigments (that is made available to the reader). The real part of the refractive index is then calculated by using the singly subtractive Kramersâ<80><93>Krönig approximation, for which the anchor point is determined with the Bruggeman mixing rule, based on the volume fraction of the microorganism internal-structures and their refractive indices (extracted from a database). Afterwards, the radiative properties are estimated using the Schiff approximation for spheroidal or cylindrical particles, as a first step toward the description of the complexity and diversity of the shapes encountered within the microbial world. Finally, these predictive results are confronted to experimental normal-hemispherical transmittance spectra for validation. This entire procedure is implemented for Rhodospirillum rubrum, Arthrospira platensis and Chlamydomonas reinhardtii, each representative of the main three kinds of photosynthetic microorganisms, i.e. respectively photosynthetic bacteria, cyanobacteria and eukaryotic microalgae. The obtained results are in very good agreement with the experimental measurements when the shape of the microorganisms is well described (in comparison to the standard volume-equivalent sphere approximation). As a main perspective, the consideration of the helical shape of Arthrospira platensis appears to be a key to an accurate estimation of its radiative properties. On the whole, the presented methodological chain also appears of great interest for other scientific communities such as atmospheric science, oceanography, astrophysics and engineering. },
author = {Jeremi Dauchet and Stephane Blanco and Jean-François Cornet and Richard Fournier},
doi = {10.1016/j.jqsrt.2015.03.025},
issn = {0022-4073},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer },
keywords = {Optical properties},
note = {},
number = {0},
pages = {60 - 84},
title = {Calculation of the radiative properties of photosynthetic microorganisms },
url = {http://www.sciencedirect.com/science/article/pii/S0022407315001272},
volume = {161},
year = {2015}
}
@article{Sebastian2014,
abstract = {Many animals in heterogeneous environments bias their trajectories displaying a preference for the vicinity of boundaries. Here we propose a criterion, relying on recent invariance properties of residence times for microreversible Boltzmann's walks, that permits detecting and quantifying boundary-following behaviors. On this basis we introduce a boundary-following model that is a nonmicroreversible Boltzmann's walk and that can represent all kinds of boundary-following distributions. This allows us to perform a theoretical analysis of field-resolved boundary following in animals. Two consequences are pointed out and are illustrated: A systematic procedure can now be used for extraction of individual properties from experimental field measurements, and boundary-curvature influence can be recovered as an emerging property without the need for individuals perceiving the curvature via complex physiological mechanisms. The presented results apply to any memoryless correlated random walk, such as the run-and-tumble models that are widely used in cell motility studies.},
author = {Weitz, Sebastian and Blanco, St{\'e}phane and Fournier, Richard and Gautrais, Jacques and Jost, Christian and Theraulaz, Guy},
doi = {10.1103/physreve.89.052715},
file = {},
issn = {},
journal = {Physical Review E},
keywords = {},
number = {5},
pages = {052715},
title = {Residence times and boundary-following behavior in animals},
url = {},
volume = {89},
year = {2014}
}
@article{Piaud2013,
abstract = {In this paper, we compare two families of Lattice Boltzmann (LB) models derived by means of
Gauss quadratures in the momentum space. The first one is the HLB($N;Q_x,Q_y,Q_z$) family, derived by using the Cartesian coordinate system and the Gauss?Hermite quadrature. The
second one is the SLB($N;K,L,M$) family, derived by using the spherical coordinate system and the Gauss?Laguerre, as well as the Gauss?Legendre quadratures. These models order them- selves according to the maximum order N of the moments of the equilibrium distribution function that are exactly recovered. Microfluidics effects (slip velocity, temperature jump, as well as the longitudinal heat fluux that is not driven by a temperature gradient) are accurately captured during the simulation of Couette flow for Knudsen number (kn) up to 0.25.},
author = {Piaud, Benjamin and Blanco, St{\'e}phane and Fournier, Richard and Ambru{\c{s}}, Victor Eugen and Sofonea, Victor},
doi = {10.1142/s0129183113400160},
file = {},
issn = {},
journal = {International Journal of Modern Physics C},
keywords = {Lattice Boltzmann; Gauss quadrature; microfluidics; Couette flow},
number = {01},
pages = {1340016},
title = {Gauss quadratures - The Keystone of Lattice Boltzmann Models},
url = {},
volume = {25},
year = {2014}
}
@article{Delatorre2013,
abstract = {The Monte Carlo method is partially reviewed with the objective of illustrating how some of the most recent methodological advances can benefit to concentrated solar research. This review puts forward the practical consequences of writing down and handling the integral formulation associated to each Monte Carlo algorithm. Starting with simple examples and up to the most complex multiple reflection, multiple scattering configurations, we try to argue that these formulations are very much accessible to the non specialist and that they allow a straightforward entry to sensitivity computations (for assistance in design optimization processes) and to convergence enhancement techniques involving subtle concepts such as control variate and zero variance. All illustration examples makePROMES - UPR CNRS 8521 - 7, rue du Four Solaire, 66120 Font Romeu Odeillo, France use of the public domain development environment EDStar (including advanced parallelized computer graphics libraries) and are meant to serve as start basis either for the upgrading of existing Monte Carlo codes, or for fast implementation of ad hoc codes when specific needs cannot be answered with standard concentrated solar codes (in particular as far as the new generation of solar receivers is concerned).},
author = {Jeremie Delatorre and Germain Baud and Jean-Jacques Bézian and Stephane Blanco and Cyril Caliot and Jean-Francois Cornet and Christophe Coustet and Jeremie Dauchet and Mouna [El Hafi] and Vincent Eymet and Richard Fournier and Jacques Gautrais and Olivier Gourmel and David Joseph and Nicolas Meilhac and Alexandre Pajot and Mathias Paulin and Patrice Perez and Benjamin Piaud and Maxime Roger and Jullien Rolland and Francois Veynandt and Sebastian Weitz},
doi = {10.1016/j.solener.2013.02.035},
issn = {0038-092X},
journal = {Solar Energy},
keywords = {Monte Carlo algorithm, Concentrated solar energy, Solar energy flux density distribution, Solar concentrators design optimization, Sensitivity computation},
pages = {653 - 681},
title = {Monte Carlo advances and concentrated solar applications},
url = {http://www.sciencedirect.com/science/article/pii/S0038092X13001448},
volume = {103},
year = {2014}
}
@article{Galtier2013,
abstract = {At the kinetic level, the meaning of null-collisions is straightforward: they correspond to pure-forward scattering events. We here discuss their technical significance in integral terms. We first consider a most standard null-collision Monte Carlo algorithm and show how it can be rigorously justified starting from a Fredholm equivalent to the radiative transfer equation. Doing so, we also prove that null-collision algorithms can be slightly modified so that they deal with unexpected occurrences of negative values of the null- collision coefficient (when the upper bound of the heterogeneous extinction coefficient is nonstrict). We then describe technically, in full details, the resulting algorithm, when applied to the evaluation of the local net-power density within a bounded, heterogeneous, multiple scattering and emitting/absorbing medium. The corresponding integral formula- tion is then explored theoretically in order to distinguish the statistical significance of introducing null-collisions from that of the integral-structure underlying modification.},
author = {Galtier, Mathieu and Blanco, Stephane and Caliot, Cyril and Coustet, Christophe and Dauchet, Jeremie and {El Hafi}, Mouna and Eymet, Vincent and Fournier, Richard and Gautrais, Jacques and Khuong, Anais and Piaud, Benjamin and Terr\'{e}e, Guillaume},
doi = {10.1016/j.jqsrt.2013.04.001},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/null\_collision.pdf:pdf},
issn = {00224073},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
keywords = {Heterogeneous media,Integral formulation,Monte Carlo,Null-collision},
month = {April},
pages = {57--68},
publisher = {Elsevier},
title = {{Integral formulation of null-collision Monte Carlo algorithms}},
url = {http://linkinghub.elsevier.com/retrieve/pii/S0022407313001350},
volume = {125},
year = {2013}
}
@article{Boeuf2012,
abstract = {Dielectric barrier discharges (DBDs) operating in a glow regime exhibit a variety of complex self-organized static or dynamical structures of filaments. Using a fluid model combined with fast camera diagnostics, we propose a clear physical description and explanation of the mechanisms responsible for the generation, annihilation, motion and self-organization of discharge filaments in DBDs in a glow regime. We show that low current â<80><9c>side dischargesâ<80><9d> generated during the same half-cycle in the vicinity of an isolated filament beyond the inhibition zone associated with charge spreading along the dielectric surface play an essential role in the triggering of these mechanisms.},
author = {Boeuf, Jean-Pierre and Bernecker, Benoit and Callegari, Thierry and Blanco, Stephane and Fournier, Richard},
doi = {10.1063/1.4729767},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/ApplPhysLett\_plasma.pdf:pdf},
issn = {00036951},
journal = {Applied Physics Letters},
number = {24},
pages = {244108},
title = {{Generation, annihilation, dynamics and self-organized patterns of filaments in dielectric barrier discharge plasmas}},
url = {http://link.aip.org/link/APPLAB/v100/i24/p244108/s1\&Agg=doi},
volume = {100},
year = {2012}
}
@article{Dauchet2012,
abstract = {The present text illustrates the practice of integral formulation, zero-variance approaches and sensitivity evaluations in the field of radiative transfer Monte Carlo simulation, as well as the practical implementation of the corresponding algorithms, for such realistic systems as photobioreactors involving spectral integration, multiple scattering and complex geometries. We try to argue that even in such non-academic contexts, strong benefits can be expected from the effort of translating the considered Monte Carlo algorithm into a rigorously equivalent integral formulation. Modifying the initial algorithm to simultaneously compute sensitivities is then straightforward (except for domain deformation sensitivities) and the question of enhancing conver- gence is turned into that of modeling a set of well identified physical quantities.},
author = {Dauchet, J\'{e}r\'{e}mi and Blanco, St\'{e}phane and Cornet, Jean-Fran\c{c}ois and Hafi, Mouna El and Eymet, Vincent and Fournier, Richard},
doi = {10.1016/j.jqsrt.2012.07.004},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/photobio\_jqsrt.pdf:pdf},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
pages = {52-59},
title = {{The practice of recent radiative transfer Monte Carlo advances and its contribution to the field of microorganisms cultivation in photobioreactors}},
url = {http://www.sciencedirect.com/science/article/pii/S0022407312003299},
volume = {128},
year = {2013}
}
@article{Bernecker2009,
abstract = {We present an experimental study of pattern formation in a Dielectric Barrier Discharge in Neon at 1 torr and 1 mm gap. An intensified CCD camera is used to analyze the time evolution of the patterns during one cycle of the voltage waveform. The formation of a hexagonal pattern of filaments in a transient, glow-like regime is observed, followed by a honeycomb structure that corresponds to a Townsend discharge occurring outside the regions delimited by the previous filaments. A 2D fluid model can qualitatively reproduce these features and is used to help interpreting the experimental results.},
author = {Bernecker, Benoit and Callegari, Thierry and Blanco, Stephane and Fournier, Richard and Boeuf, Jean-Pierre},
doi = {10.1051/epjap/2009082},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/plasma\_euro\_phys\_appli.pdf:pdf},
issn = {1286-0042},
journal = {The European Physical Journal Applied Physics},
month = {April},
number = {2},
pages = {22808},
title = {{Hexagonal and honeycomb structures in Dielectric Barrier Discharges}},
url = {http://www.epjap.org/10.1051/epjap/2009082},
volume = {47},
year = {2009}
}
@article{Gautrais2009,
abstract = {The trajectories of Kuhlia mugil fish swimming freely in a tank are analyzed in order to develop a model of spontaneous fish movement. The data show that K. mugil displacement is best described by turning speed and its auto-correlation. The continuous-time process governing this new kind of displacement is modelled by a stochastic differential equation of Ornstein-Uhlenbeck family: the persistent turning walker. The associated diffusive dynamics are compared to the standard persistent random walker model and we show that the resulting diffusion coefficient scales non-linearly with linear swimming speed. In order to illustrate how interactions with other fish or the environment can be added to this spontaneous movement model we quantify the effect of tank walls on the turning speed and adequately reproduce the characteristics of the observed fish trajectories.},
author = {Gautrais, Jacques and Jost, Christian and Soria, Marc and Campo, Alexandre and Motsch, S\'{e}bastien and Fournier, Richard and Blanco, St\'{e}phane and Theraulaz, Guy},
doi = {10.1007/s00285-008-0198-7},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/j\_math\_bio\_fish.pdf:pdf},
issn = {0303-6812},
journal = {Journal of mathematical biology},
keywords = {Animals,Computer Simulation,Models, Biological,Perciformes,Perciformes: physiology,Stochastic Processes,Swimming,Swimming: physiology,Videotape Recording},
month = {March},
number = {3},
pages = {429--45},
pmid = {18587541},
title = {{Analyzing fish movement as a persistent turning walker.}},
url = {http://www.ncbi.nlm.nih.gov/pubmed/18587541},
volume = {58},
year = {2009}
}
@article{Piaud2008,
abstract = {Colloidal dispersions areknownto undergo phase transition in a number of processes. This often gives rise to formation of structures in a flowing medium. In this paper, we present a model for flow of a colloidal dispersion with phase change. Two distribution functions are used. The colloid is described as a non-ideal fluid capable of phase change, but rather than taking the dispersion medium as the second fluid, a better choice is the dispersion (water plus colloid) which can be considered as an incompressible fluid. This choice allows a standard Lattice Boltzmann (LB) model for incompressible fluids to be used in combination with for the â<80><98>free-energyâ<80><99> LB model for the colloid. The coupling between the two fluids is the drag force on the colloid and the dependence of the viscosity of the overall fluid on the particle volume fraction. The problems raised by characteristic times and lengths have been treated. The main application considered is the growth dynamics or domain structuration of protein dispersions during dead-end filtration on a membrane surface.},
author = {Piaud, Benjamin and Clifton, Michael and Blanco, Stephane and Fournier, Richard},
doi = {10.1504/pcfd.2008.018094},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/piaud\_clifton\_fluid.pdf:pdf},
issn = {1468-4349},
journal = {Progress in Computational Fluid Dynamics, An International Journal},
keywords = {Lattice Boltzmann method.,colloids,non-ideal fluid,phase transition},
number = {1/2/3/4},
pages = {129},
title = {{Lattice Boltzmann method for colloidal dispersions with phase change}},
url = {http://www.inderscience.com/link.php?id=18094},
volume = {8},
year = {2008}
}
@article{Lahellec2008,
abstract = {We propose a method to extend the concept of feedback gain to nonlinear models. The method is designed to dynamically characterise a feedback mechanism along the system natural trajectory. The numerical efficiency of the method is proved using the Lorenz (1963) classical model. Finally, a simple climate model of water vapour feedback shows how nonlinearity impacts feedback intensity along the seasonal cycle.},
author = {Lahellec, Alain and Hallegatte, Stephane and Grandpeix, Jean-Yves and Dumas, Patrice and Blanco, Stephane},
doi = {10.1209/0295-5075/81/60001},
file = {:Volumes/Data/blanco/biblio\_new/Nos\_papiers/epl\_retroaction.pdf:pdf},
issn = {0295-5075},
journal = {EPL (Europhysics Letters)},
month = {March},
number = {6},
pages = {60001},
title = {{Feedback characteristics of nonlinear dynamical systems}},
url = {http://apps.isiknowledge.com/full\_record.do?product=WOS\&search\_mode=Analyze\&qid=3\&SID=S1@NJ5ODoI7JO9gbF1a\&page=1\&doc=9},
volume = {81},
year = {2008}
}
@article{jost2007,
abstract = {Many spatial patterns observed in nature emerge from local processes and their interactions with the local environment. The clustering of objects by social insects represents such a pattern formation process that can be observed at both the individual and the collective level. In this paper, we study the interaction between air currents and clustering behaviour in order to address the coordinating mechanisms at the individual level that underlie the spatial pattern formation process in a heterogeneous environment. We choose the corpse clustering behaviour of the ant Messor sanctus as an experimental paradigm. In a specifically designed experimental set-up with a well-controlled laminar air flow (approx. 1 cm s(-1)), we first quantify the modulation of the individual corpse aggregation behaviour as a function of corpse density, air flow intensity and the ant's position with respect to corpse piles and air flow direction. We then explore by numerical simulation how the forming corpse piles modify the laminar air flow around them and link this result with the individual behaviour modulation. Finally, we demonstrate on the collective level that this laminar air flow leads to an elongation and a slow displacement of the formed corpse piles in the direction of the air current. Both the individual behaviour modulated by air flow and the air flow modulated by the forming corpse piles can explain the pile patterns observed on the collective level as a stigmergic process. We discuss the generality of this coordinating mechanism to explain the clustering phenomena in heterogeneous environments reported in the literature.},
author = {Jost, Christian and Verret, Julie and Casellas, Eric and Gautrais, Jacques and Challet, M{\'e}lanie and Lluc, Jacques and Blanco, St{\'e}phane and Clifton, Michael and Theraulaz, Guy},
doi = {10.1098/rsif.2006.0156},
journal = {Journal of the Royal Society Interface},
keywords = {clustering; Messor sanctus; morphogenesis; interaction with
environment; wind sensitivity
NECROPHORIC BEHAVIOR; POGONOMYRMEX-BADIUS; ATTA-VOLLENWEIDERI; NEST
CONSTRUCTION; DESERT ANTS; AGGREGATION; VENTILATION; DYNAMICS;
PATTERNS; COCKROACHES},
number = {12},
optnote = {Jost, Christian Verret, Julie Casellas, Eric Gautrais, Jacques Challet, Melanie Lluc, Jacques Blanco, Stephane Clifton, Michael J. Theraulaz, Guy
62},
pages = {107-116},
title = {The interplay between a self-organized process and an environmental template: corpse clustering under the influence of air currents in ants},
volume = {4},
year = {2007}
}
@article{blanco2006,
abstract = {In the field of first return time statistics in bounded domains, short paths may be defined as those paths for which the diffusion approximation is inappropriate. This is at the origin of numerous open questions concerning the characterization of residence time distributions. We show here how general integral constraints can be derived that make it possible to address short-path statistics indirectly by application of the diffusion approximation to long paths. Application to the moments of the distribution at the low-Knudsen limit leads to simple practical results and novel physical pictures.},
author = {Blanco, Stephane and Fournier, Richard},
doi = {10.1103/PhysRevLett.97.230604},
journal = {Physical Review Letters},
keywords = {RANDOM-WALKS; BOUNDED DOMAINS; BODIES},
number = {23},
optnote = {Blanco, Stephane Fournier, Richard
19},
pages = {4},
title = {Short-path statistics and the diffusion approximation},
volume = {97},
year = {2006}
}
@article{roger2005,
abstract = {It is shown that, when a Monte Carlo algorithm is used for estimation of any physical quantity A, a simple and fast additional procedure can be implemented that simultaneously estimates the sensitivity of A to any problem parameter. The proposed approach is general and systematic in the sense that: (i) it includes domain-deformation sensitivities, i.e., cases where a change in the parameter modifies the domain over which the sampled random variables are defined and (ii) a simple generic procedure is presented to address all remaining free choices in terms of variance minimization.},
author = {Roger, Maxime and Blanco, Stephane and El Hafi, Mouna and Fournier, Richard},
doi = {10.1103/PhysRevLett.95.180601},
journal = {Physical Review Letters},
number = {18},
optnote = {8},
pages = {4},
title = {Monte Carlo estimates of domain-deformation sensitivities},
volume = {95},
year = {2005}
}
@article{piaud2005,
abstract = {A discrete velocity model is presented for lattice Boltzmann thermal fluid dynamics. This model is implemented and tested in two dimensions with a finite difference scheme. Comparison with analytical solutions shows an excellent agreement even for wide temperature differences. An alternative approximate approach is then presented for traditional lattice transport schemes.},
author = {Piaud, Benjamin and Blanco, Stephane and Fournier, Richard and Clifton, Michael},
doi = {10.1007/s10955-005-5256-6},
journal = {Journal of Statistical Physics},
keywords = {thermal lattice Boltzmann; compressibility; BGK approximation;
Gauss-Hermitte quadrature
EQUATION; FLOWS},
number = {1-2},
optnote = {14},
pages = {119-131},
title = {Energy-conserving lattice Boltzmann thermal model in two dimensions},
volume = {121},
year = {2005}
}
@article{challet2005a,
abstract = {Environmental heterogeneities can change animal movement in two different manners. First, they can modify movement characteristics (move lengths or turning angles), in which case the movement remains of the diffusive kind. Second, they can bias displacement towards a particular direction in which case it becomes non-diffusive. We propose in this paper a simple method that only requires computing the mean length of a sample of trajectories in some bounded area to distinguish between these two kinds of movement. We show through simulations that the method allows to detect the presence of heterogeneities that orient animal movement. We apply it to experimental trajectories of Messor sancta ants engaged in corpse aggregation to show that their displacement is oriented at the contact of the formed corpse piles and that their trajectories become non-diffusive.},
author = {Challet, Melanie and Fourcassie, Vincent and Blanco, Stephane and Fournier, Richard and Theraulaz, Guy and Jost, Christian},
doi = {10.1007/s00114-005-0001-1},
journal = {Naturwissenschaften},
keywords = {CORRELATED RANDOM-WALK; PATCHY ENVIRONMENT; FORAGING MOVEMENTS; ANIMAL
MOVEMENT; PATTERNS; ANT},
number = {8},
optnote = {21},
pages = {367-370},
title = {A new test of random walks in heterogeneous environments},
volume = {92},
year = {2005}
}
@article{Eymet2005,
abstract = {A boundary-based net-exchange Monte Carlo method was introduced (JQSRT 74 (2001) 563) that allows to bypass the difficulties encountered by standard Monte Carlo algorithms in the limit of optically thick absorption (and/or for quasi-isothermal configurations). With the present paper, this method is extended to scattering media. Developments are fully 3D, but illustrations are presented for plane parallel configuration. Compared to standard Monte Carlo algorithms, convergence qualities have been improved over a wide range of absorption and scattering optical thicknesses. The proposed algorithm still encounters a convergence difficulty in the case of optically thick, highly scattering media. (C) 2004 Elsevier Ltd. All rights reserved.},
author = {Eymet, Vincent and Fournier, Richard and Blanco, Stephane and Dufresne, Jean-Louis},
doi = {10.1016/j.jqsrt.2004.05.049},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
keywords = {Monte Carlo; net-exchange formulation; scattering; numerical
optimization; convergence
HEAT-TRANSFER; RADIATION; FORMULATION},
number = {1},
optnote = {19},
pages = {27-46},
title = {A boundary-based net-exchange Monte Carlo method for absorbing and scattering thick media},
volume = {91},
year = {2005}
}
@article{Eymet2004-a,
abstract = {The Net Exchange Formulation (NEF) is an alternative to the usual radiative transfer equation. It was proposed in 1967 by Green [Q. J. R. Meteorol. Soc. 93 (1967) 371] for atmospheric sciences and by Hottel [H.C. Hottel, A.F. Sarofim. Radiative Transfer McGraw Hill, New York, 1967] for engineering sciences. Until now, the NEF has been used only in a very few cases for atmospheric studies. Recently we have developed a long-wave radiative code based on this formulation for a GCM of the Mars planet. Here, we will present results for the Earth atmosphere, obtained with a Monte Carlo Method based on the NEF. In this method, fluxes are not addressed any more. The basic variables are the net exchange rates (NER) between each pair of atmospheric layer (i, j), i.e. the radiative power emitted by i and absorbed by j minus the radiative power emitted by j and absorbed by i. The graphical representation of the NER matrix highlights the radiative exchanges that dominate the radiative budget of the atmosphere and allows one to have a very good insight of the radiative exchanges. Results will be presented for clear sky atmospheres with Mid-Latitude Summer and Sub-Arctic Winter temperature profiles, and for the same atmospheres with three different types of clouds. The effect of scattering on long-wave radiative exchanges will also be analysed. (C) 2004 Elsevier B.V. All rights reserved.},
author = {Eymet, Vincent and Dufresne, Jean-Louis and Ricchiazzi, Paul and Fournier, Richard and Blanco, St{\'e}phane},
doi = {10.1016/j.atmosres.2004.03.017},
journal = {Atmospheric Research},
keywords = {radiation; net-exchange formulation; scattering; clouds; terrestrial GCM
MULTIPLE-SCATTERING; COOLING RATES; PARAMETERIZATION; MODEL;
APPROXIMATION; COMPUTATION; ABSORPTION; FLUXES},
number = {1-4},
optnote = {26},
pages = {239-261},
title = {Long-wave radiative analysis of cloudy scattering atmospheres using a net exchange formulation},
volume = {72},
year = {2004}
}
@article{blanco2003,
abstract = {Starting from a simple animal-biology example, a general, somewhat counter-intuitive property of diffusion random walks is presented. It is shown that for any (nonhomogeneous) purely diffusing system, under any isotropic uniform incidence, the average length of trajectories through the system ( the average length of the random walk trajectories from entry point to first exit point) is independent of the characteristics of the diffusion process and therefore depends only on the geometry of the system. This exact invariance property may be seen as a generalization to diffusion of the well-known mean-chord-length property (Case K.M. and Zweifel P.F., Linear Transport Theory (Addison-Wesley) 1967), leading to broad physics and biology applications.},
author = {Blanco, Stephane and Fournier, Richard},
doi = {10.1209/epl/i2003-00208-x},
journal = {Europhysics Letters},
keywords = {PHOTON MIGRATION; PATH-INTEGRALS; APPROXIMATION; SCATTERING; MEDIA},
number = {2},
optnote = {12},
pages = {168-173},
title = {An invariance property of diffusive random walks},
volume = {61},
year = {2003}
}
@article{Lataillade2002b,
abstract = {It is shown that, starting from any existing Monte Carlo algorithm for estimation of a physical quantity A, it is possible to implement a simple additional procedure that simultaneously estimates the sensitivity of A to any problem parameter. The corresponding supplementary cost is very low as no additional random sampling is required. The principle is presented on a formal basis and simple radiative transfer examples are used for illustration. (C) 2002 Elsevier Science Ltd. All rights reserved.},
author = {de Lataillade, Amaury and Blanco, Stephane and Clergent, Yves and Dufresne, Jean-Louis and El Hafi, Mouna and Fournier, Richard},
doi = {10.1016/s0022-4073(02)00027-4},
journal = {Journal of Quantitative Spectroscopy and Radiative Transfer},
keywords = {Monte Carlo; sensitivity analysis
NET-EXCHANGE FORMULATION; MODEL},
number = {5},
optnote = {13},
pages = {529-538},
title = {Monte Carlo method and sensitivity estimations},
volume = {75},
year = {2002}
}
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