Comparison of Acceleration Methods in a Radiation Transport Code With Adaptive Mesh Refinement

被引：7
|
作者：
Garcia-Fernandez, Carlos [1 ]
Velarde, Pedro [1 ]
Cotelo, Manuel [1 ]
机构：
[1] Univ Politecn Madrid, Inst Fus Nucl, E-28006 Madrid, Spain
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2010年 / 38卷 / 09期
关键词：
Adaptive mesh refinement (AMR); diffusion synthetic acceleration (DSA); radiation transport; synthetic acceleration; transport synthetic acceleration (TSA); DIFFUSION SYNTHETIC ACCELERATION; ITERATIVE METHODS; HYDRODYNAMICS;
D O I：
10.1109/TPS.2010.2052109
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
New considerations about the acceleration of an iterative process to couple the radiation transport equation and the equation of matter temperature are presented in this paper. Two synthetic acceleration methods [diffusion synthetic acceleration (DSA) and transport synthetic acceleration (TSA)] have been studied and analyzed, showing its strengths and weaknesses. This study is applied to an adaptive mesh refinement (AMR) context, concluding in a better performance of DSA for coarse level resolutions with higher S(n), while TSA is better for finer level boxes and smaller S(n) cases. These conclusions are applied to accelerate the resolution of an AMR problem.
引用
收藏
页码：2359 / 2366
页数：8
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