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physics.comp-ph2021★ 3 cited
Direct Flux Gradient Approximation to Close Moment Model for Kinetic Equations
Ruo Li, Weiming Li, Lingchao Zheng
To close the moment model deduced from kinetic equations, the canonical approach is to provide an approximation to the flux function not able to be depicted by the moments in the r…
physics.comp-ph2020★ 1 cited
A Nonlinear Moment Model for Radiative Transfer Equation
Ruo Li, Peng Song, Lingchao Zheng
We derive a nonlinear moment model for radiative transfer equation in 3D space, using the method to derive the nonlinear moment model for the radiative transfer equation in slab ge…
physics.comp-ph2019★ 4 cited
A Nonlinear Three-Moment Model for Radiative Transfer in Spherical Symmetry
Ruo Li, Weiming Li, Lingchao Zheng
We study the approximation of the radiative transfer equation with a relatively few moments in the spherically symmetric case. We propose a three-moment model based on choosing the…