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Adaptive Finite Element Simulation of the Time-dependent Simplified P N Equations
被引:1
作者:
Frank, Martin
[1
]
Lang, Jens
[2
]
Schafer, Matthias
[3
]
机构:
[1] Rhein Westfal TH Aachen, Ctr Computat Engn Sci, D-52062 Aachen, Germany
[2] Tech Univ Darmstadt, DFG Grad Sch Excellence Computat Engn, DFG Excellence Cluster Smart Interfaces, D-64293 Darmstadt, Germany
[3] Fraunhofer ITWM, D-67663 Kaiserslautern, Germany
关键词:
Radiative transfer;
Finite elements;
Adaptivity;
RADIATIVE HEAT-TRANSFER;
APPROXIMATIONS;
D O I:
10.1007/s10915-011-9466-6
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The steady-state simplified P (N) approximation to the radiative transfer equation has been successfully applied to many problems involving radiation. Recently, time-dependent simplified P (N) equations have been derived by an asymptotic analysis similar to the asymptotic derivation of the steady-state SP (N) equations (Frank et al. in J. Comput. Phys. 226:2289-2305, 2007). In this paper, we present computational results for the time-dependent SP (N) equations in two dimensions, obtained by using an adaptive finite element approach. Several numerical comparisons with other existing models are shown.
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页码:332 / 350
页数:19
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