| 高阶精度CE/SE算法及其应用 |
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| 引用本文： | 张德良,王景焘,王刚. 高阶精度CE/SE算法及其应用[J]. 计算物理, 2009, 26(2): 211-220 |
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| 作者姓名： | 张德良 王景焘 王刚 |
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| 作者单位： | 中国科学院力学研究所,北京,100190;北京大学工学院,北京,100871 |
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| 摘 要： | 对时-空守恒元解元算法(CE/SE)的网格设置做较大改进,提出一种新的六面体解元和元定义;同时在解元中对物理量进行高阶Taylor展开,给出一种在时间和空间上均具有高阶精度CE/SE算法.在此基础上,把新型的高阶精度CE/SE算法推广应用于高速流动捕捉激波间断、气相化学反应流动、计及固体动态效应的流体-弹塑性流动和非稳态多相不可压缩粘性流动中.数值实践表明,提出的新型网格结构上的高阶精度CE/SE算法具有算法简单、计算精度高、计算效率和计算效果好的优点,并大大改进和拓展了CE/SE算法的应用范围.
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| 关 键 词： | CE/SE算法 激波捕捉技术 化学反应流动 流体一弹塑性流动 多相不可压缩粘性流动 |
| 收稿时间： | 2007-10-17 |
| 修稿时间： | 2008-02-22 |
High-order CE/SE Method and Applications |
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| ZHANG Deliang,WANG Jingtao,WANG Gang. High-order CE/SE Method and Applications[J]. Chinese Journal of Computational Physics, 2009, 26(2): 211-220 |
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| Authors: | ZHANG Deliang WANG Jingtao WANG Gang |
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| Affiliation: | 1. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;2. College of Engineering, Peking University, Beijing 100871, China |
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| Abstract: | Space-time conservation element and solution element(CE/SE) method with second order accuracy is modified on hexahedral grids. High-order accuracy in space and time is obtained by expanding variables in SEs with high order.CE/SE method is used to capture shock waves in chemical reaction flows,elastic-plastic flows and unsteady multi-phase incompressible flows.Numerical results are compared with experimental and theoretical results of classical examples.It is indicated that the method is easy to implement, a... |
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| Keywords: | CE/SE method shock wave capture chemical reaction flow elastic-plastic flow multi-phase incompressible flow |
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