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一个磁流体力学中心型数值通量的耗散控制器（英文）
  • ISSN号：1001-246X
  • 期刊名称：《计算物理》
  • 时间：0
  • 分类：O241.82[理学—计算数学;理学—数学] O361.3[理学—流体力学;理学—力学]
  • 作者机构：[1]中国工程物理研究院研究生部,北京100088
  • 相关基金：Supported in part by the National Natural Science Foundation of China under Grant No. 10431050; the foundation of CAEP 2007B09008; foundation of LCP 9140C6902010805
作者： 吴昊[1]
关键词： 磁流体力学, 中心型数值通量, 耗散控制器, magnetohy drody namics（MHDs）, central fluxes, dissipationregulator
中文摘要：

提出一种针对磁流体力学模拟中中心型数值通量的耗散控制器.由于磁流体力学方程组较为复杂,中心型数值通量不需要复杂的特征分解,因而中心型数值格式更适合磁流体力学的数值模拟.但是稳定单调的中心型数值通量比迎风型数值通量耗散大,对此,提出一种控制中心型数值通量数值耗散的控制器.将这个耗散控制器应用于以局部Lax-Feiedrichs格式通量为例的中心型数值通量.两个基准解的数值算例证明方法有效.

英文摘要：

We propose a method to regulate numerical dissipation of central numerical fluxes in magnetohydrodynamics,and give a dissipation regulator for central numerical fluxes.We take Local Lax-Friedrichs flux as an example and apply the dissipation regulator in computation.A second order accurate MUSCL data reconstruction is used to extend Local LaxFriedrichs scheme to second-roder.Two test benchmark problems show that the dissipation regulator is effcient.

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期刊信息
  • 《计算物理》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国核学会
  • 主编：朱少平
  • 地址：北京海淀区丰豪东路2号北京应用物理与计算数学研究所
  • 邮编：100094
  • 邮箱：jswl@iapcm.ac.cn
  • 电话：010-59872547 59872545 59872547
  • 国际标准刊号：ISSN：1001-246X
  • 国内统一刊号：ISSN：11-2011/O4
  • 邮发代号:2-477
  • 获奖情况:
  • 1992年获“全优期刊”奖,《CAJ-CD规范》执行优秀奖
  • 国内外数据库收录:
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  • 被引量:4426