空腔靶大变形问题的网格构造

计算物理 ›› 2007, Vol. 24 ›› Issue (1): 1-6.

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空腔靶大变形问题的网格构造

勇珩^1,2, 袁国兴¹, 裴文兵¹, 古培俊¹

1. 北京应用物理与计算数学研究所, 北京 100088;
2. 中国工程物理研究院研究生部, 北京 100088

收稿日期:2005-10-21 修回日期:2006-01-19 出版日期:2007-01-25 发布日期:2007-01-25
作者简介:勇珩(1974-),女,山东威海,助研,博士生,从事激光靶耦合计算方法与数值模拟工作,北京8009信箱12分箱100088.
基金资助:
国家863高技术惯性约束聚变主题;国家自然科学基金(10572028);国家重点基础研究专项经费(2005CB321702)资助项目

Grid Strategy for Distorted Meshes in a Hohlraum

YONG Heng^1,2, YUAN Guoxing¹, PEI Wenbing¹, GU Peijun¹

1. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
2. Graduate School of China Academy of Engineering, Beijing 100088, China

Received:2005-10-21 Revised:2006-01-19 Online:2007-01-25 Published:2007-01-25

摘要/Abstract

摘要： 针对ICF(Inertial Confinement Fusion)空腔靶大变形问题,发展了九点网格重构方法.拓展后的九点网格重构方法,保留了九点网格重构方法的基本特征(逼近椭圆型或抛物型方程,并具有一维球对称性),而且包含更多形式的九点网格重构方法,扩展了实际问题的使用需要.最后LARED-H程序采用ALE(ArbitraryLagrangian-Eulerian)方法,对空腔靶进行数值模拟,给出了合理的物理图像.

关键词: 拓展的九点网格重构法, 网格大变形, Arbitrary Lagrangian-Eulerian方法

Abstract: In order to untangle serious distortion in a hohlraum for ICF (Inertial Confinement Fusion),a nine-point rezone strategy is developed.The scheme is approximate to an elliptic or a parabolic equation,and preserves spherical symmetry.The scheme includes several forms of the nine-point rezone scheme according to different requirement in practical problems.The ALE (Arbitrary Lagrangian-Eulerian) method is used in code LARED-H. Suitable results for a hohlraum is illustrated.

Key words: improved nine-point rezone strategy, distorted grid, arbitrary Lagrangian-Eulerian method

中图分类号:

O531.2

勇珩, 袁国兴, 裴文兵, 古培俊. 空腔靶大变形问题的网格构造[J]. 计算物理, 2007, 24(1): 1-6.

YONG Heng, YUAN Guoxing, PEI Wenbing, GU Peijun. Grid Strategy for Distorted Meshes in a Hohlraum[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2007, 24(1): 1-6.

空腔靶大变形问题的网格构造

Grid Strategy for Distorted Meshes in a Hohlraum

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