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网格重分中关于守恒重映的几个问题 被引量:5

SEVERAL PROBLEMS IN CONSERVATIVE REMAPPING
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摘要 首先针对离散情况 ,对守恒重映中的“守恒”给出数学上严格的解释 .在此基础上 ,对守恒重映问题中所固有的守恒量协调问题作了描述 ,并提出一种基于最小二乘法的处理方案 .同时 ,还分析了容易混淆的“质量密度”和“体积密度” ,网格中心量和网格节点量等基本概念 ,并采用两种不同的辅助网格来对网格节点量进行重映 . The strict explanation about conservation on discrect sitiuation is given at first.Then the dilemma among different conservative variables are discussed,and a least squart method is presented to solve it.Some easily confused concepts about conservation are analysed in detail. [
出处 《计算物理》 CSCD 北大核心 2001年第1期17-22,共6页 Chinese Journal of Computational Physics
基金 计算物理国家重点实验室试点基金 中国博士后科学基金资助项目
关键词 计算流体动力学 守恒重映 ICF数值模拟 ALE方法 网格重分 computational fluid dynamics conservative remapping ICF simulation ALE method<
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