| 王景焘,于长平,刘凯欣.几种差分格式对于流体弹塑性模型的适应性分析[J].计算力学学报,2006,23(1):1~6 |
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| 几种差分格式对于流体弹塑性模型的适应性分析 |
| A feasibility analysis of several numerical schemes for solving hydro-elastic-plastic problems |
| 修订日期：2004-02-23 |
| DOI：10.7511/jslx20061001 |
| 中文关键词: 流体弹塑性 CE/SE方法 CIP方法 MUSCL格式 Roe格武 |
| 英文关键词:hydro-elastic-plastic,conservational equations,CE/SE,CIP,Roe,MUSCL, |
| 基金项目:国家重点基础研究发展计划(973计划);中国科学院资助项目 |
| 王景焘 于长平 刘凯欣 |
| 北京大学力学与工程科学系,北京100871 |
| 摘要点击次数: 1937 |
| 全文下载次数: 13 |
| 中文摘要: |
| 通过模拟弹性介质和流体中的强间断传播，分析了守恒元／解元（CE／SE）、立方插值伪质点法（CIP）、Roe格式以及二阶Godunov方法（MUSCL）四种格式对流体弹塑性问题的适应性，发现CE／SE方法和MUSCL方法较为优越。利用CE／SE方法模拟了爆炸焊接形成的波状界面问题，印证了CE／SE方法在处理流体弹塑性问题上的优越性。 |
| 英文摘要: |
| In this paper,the feasibilities for hydro-elastic-plastic model with four famous fluid dynamics numerical methods,namely,CE/SE,CIP,Roe and MUSCL are investigated.The mechanical process involving strong discontinuity in elastic mediums and the one-dimensional shock tube problem are simulated,by using the four methods.By analyzing the numerical results carefully,one could preliminarily conclude that CE/SE method and MUSCL method are better for solving hydro-elastic-plastic problems.Due to the clear physics concepts in the construction process and the higher-resolution,CE/SE method is the most suitable for computing hydro-elastic-plastic problems in the four schemes.To test the capability in detail,CE/SE method is also performed to simulate a hydro-elastic-plastic problem,which is the wavy interface generation process in explosive welding of steel-copper plates and aluminum-copper plates.The computational results are very similar to the experimental ones. |
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