| 一种新型的计算化学非平衡流动的解耦方法 |
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| 引用本文： | 刘君,张涵信,高树椿.一种新型的计算化学非平衡流动的解耦方法[J].国防科技大学学报,2000,22(5):19-22. |
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| 作者姓名： | 刘君 张涵信 高树椿 |
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| 作者单位： | 1. 国防科技大学航天与材料工程学院,湖南长沙,410073
2. 中国空气动力研究与发展中心,四川绵阳 621000 |
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| 摘 要： | 给出一种计算化学非平衡流动的解耦方法。利用该方法从薄层近似N S方程出发 ,采用NND2M差分格式 ,数值模拟了H2 /O2 燃烧的超音速绕流场 ;计算表明这种方法可以有效地解决刚性问题 ,而且与现有的隐式算法相比 ,具有公式推导简便 ,占用内存少 ,计算效率高等优点 ,特别适合于多组分和多反应的情况
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| 关 键 词： | 计算方法 化学非平衡流动 计算流体力学 |
| 文章编号： | 1001-2486(2000)05-0019-04 |
| 收稿时间： | 4/1/2000 12:00:00 AM |
| 修稿时间： | 2000-04-01 |
A New Uncoupled Method for Numerical Simulation of Nonequilibrium flow |
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| LIU Jun,ZHANG Hanxin and GAO Shuchun.A New Uncoupled Method for Numerical Simulation of Nonequilibrium flow[J].Journal of National University of Defense Technology,2000,22(5):19-22. |
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| Authors: | LIU Jun ZHANG Hanxin and GAO Shuchun |
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| Institution: | LIU Jun
(College of Aerospace and Material Engineering, National Univ. of Defense Technology, Changsha 410073, China)ZHANG Han-xin
,GAO Shu-chun
(China Aerodynamics Research & Development Center, Mianyang 621000, China) |
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| Abstract: | An new uncoupled method was introduced to simulate numerically nonequilibrium flow which had the stiffness problem. The flow phenomenon of H 2/O 2 combustion induced by shock was simulated with the method, based on N S equations and NND2M scheme. The results indicated that the method was simple and efficient in the application to multi component and multi reaction flow. |
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| Keywords: | calculation method non equilibrium flow CFD |
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