Title
Asymptotic-preserving & well-balanced schemes for radiative transfer and the Rosseland approximation
Abstract
We are concerned with efficient numerical simulation of the radiative transfer equations. To this end, we follow the Well-Balanced approach's canvas and reformulate the relaxation term as a nonconservative product regularized by steady-state curves while keeping the velocity variable continuous. These steady-state equations are of Fredholm type. The resulting upwind schemes are proved to be stable under a reasonable parabolic CFL condition of the type Δt≤O(Δx2) among other desirable properties. Some numerical results demonstrate the realizability and the efficiency of this process.
Year
DOI
Venue
2004
10.1007/s00211-004-0533-x
Numerische Mathematik
Keywords
Field
DocType
nonconservative product,radiative transfer equation { well-balanced scheme { nonconservative products.,rosseland approximation,well-balanced approach,steady-state equation,well-balanced scheme,desirable property,numerical result,reasonable parabolic cfl condition,radiative transfer equation,steady-state curve,fredholm type,efficient numerical simulation,steady state,upwind scheme,numerical simulation,radiative transfer
Mathematical optimization,Courant–Friedrichs–Lewy condition,Fredholm integral equation,Mathematical analysis,Relaxation (iterative method),Upwind scheme,Radiative transfer,Numerical analysis,Partial differential equation,Mathematics,Parabola
Journal
Volume
Issue
ISSN
98
2
0029-599X
Citations 
PageRank 
References 
18
2.31
7
Authors
2
Name
Order
Citations
PageRank
Laurent Gosse1305.50
Giuseppe Toscani213824.06