|Table of Contents|

A Pressure Decoupled BGK Model for the Equations of Radiation Hydrodynamics

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2013年04期
Page:
5-
Research Field:
数学
Publishing date:

Info

Title:
A Pressure Decoupled BGK Model for the Equations of Radiation Hydrodynamics
Author(s):
Sun Wenjun; Ni Guoxi
Beijing Institute of Applied Physics and Computational Mathematics,Beijing 100088,China
Keywords:
BGK model; radiation hydrodynamics; zero diffusion; 2nd-order BGK scheme
PACS:
O241.8
DOI:
-
Abstract:
This paper concerns a kinetic scheme for the equations of radiation hydrodynamics by constructing a pressure decoupled BGK model,in which hydrodynamic and radiation pressures are decoupled.The merits have two aspects,on one hand,with this decoupled model,the actions of material and radiation can be decoupled easily,a more clear relation between the macroscopic equation and microscopic equation can be obtained,on the other hand,the construction of the scheme based on this model can be simplified greatly.A second order BGK scheme for the equations of multidimensional radiation hydrodynamics(RHE)in zero diffusion limit is also presented.Several one and two dimensional numerical examples demonstrate the performance of the new scheme.

References:

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Last Update: 2013-12-30