68 citations · 167 across the 11 of their papers we have counts for
11 papers
Wave-Scattering processes: path-integrals designed for the numerical handling of complex geometries
Jérémi Dauchet, Julien Charon, Laurent Brunel +10
Relying on Feynman-Kac path-integral methodology, we present a new statistical perspective on wave single-scattering by complex three-dimensional objects. The approach is implement…
A physical model and a Monte Carlo estimate for the specific intensity spatial derivative, angular derivative and geometric sensitivity
Paule Lapeyre, Zili He, Stéphane Blanco +11
Starting from the radiative transfer equation and its usual boundary conditions, the objective of this work is to design Monte Carlo algorithms estimating the specific intensity sp…
The "teapot in a city": a paradigm shift in urban climate modeling
Najda Villefranque, Frédéric Hourdin, Louis d'Alençon +12
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 commun…
Convergence issues in derivatives of Monte Carlo null-collision integral formulations: a solution
J-M Tregan, S. Blanco, J. Dauchet +5
When a Monte Carlo algorithm is used to evaluate a physical observable A, it is possible to slightly modify the algorithm so that it evaluates simultaneously A and the derivatives…
A boundary-based net-exchange Monte Carlo method for absorbing and scattering thick media
V. Eymet, R. Fournier, S. Blanco +1
A boundary-based net-exchange Monte Carlo method was introduced in [1] that allows to bypass the difficulties encountered by standard Monte Carlo algorithms in the limit of optical…
An invariance property of diffusive random walks
Stephane Blanco, Fournier Richard
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 (non-homogeneous) pur…
Path-tracing Monte Carlo Library for 3D Radiative Transfer in Highly Resolved Cloudy Atmospheres
Najda Villefranque, Fleur Couvreux, Richard Fournier +5
Interactions between clouds and radiation are at the root of many difficulties in numerically predicting future weather and climate and in retrieving the state of the atmosphere fr…
Traveling pulse emerges from individuals coordinating their stop-and-go motion: a case study in sheep
Manon Azaïs, Stéphane Blanco, Richard Bon +3
Monitoring small groups of sheep in spontaneous evolution in the field, we decipher behavioural rules that sheep follow at the individual scale in order to sustain collective motio…
Addressing the gas kinetics Boltzmann equation with branching-path statistics
Guillaume Terrée, Mouna El Hafi, Stéphane Blanco +3
This article proposes a new statistical numerical method to address gas kinetics problems obeying the Boltzmann equation. This method is inspired from some Monte-Carlo algorithms u…
Implementation of the force term in half-range lattice Boltzmann models
Victor E. Ambrus, Victor Sofonea, Richard Fournier +1
In the frame of the Boltzmann equation, wall-bounded flows of rarefied gases require the implementation of boundary conditions at the kinetic level. Such boundary conditions induce…
Addressing nonlinearities in Monte Carlo
Jérémi Dauchet, Jean-Jacques Bezian, Stéphane Blanco +16
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 sever…