| 高超声速电离绕流的数值模拟 |
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| 引用本文： | 高铁锁,李椿萱,董维中,张巧芸. 高超声速电离绕流的数值模拟[J]. 空气动力学学报, 2002, 20(2): 184-191 |
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| 作者姓名： | 高铁锁 李椿萱 董维中 张巧芸 |
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| 作者单位： | 1. 北京航空航天大学,北京,100083
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： | 本文从三维N－S方程出发，采用稳式L－U分解算法和7组分15个反应的化学模型，数值模拟高超声速电离空气绕流。首先采用对称TVD格式、AUSMPW＋格式和Van Leer的矢通量分裂格式计算了高超声速球头绕流，并对它们的计算结果做了对比分析。然后用前两种格式，对RAM－C飞行试验模型三个再入高度（81km、71km、61km）的流场进行了数值模拟，计算的流场电子数密度值和试验测量数据符合较好。
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| 关 键 词： | 高超声速电离绕流 数值模拟 化学非平衡流动 电子数密度 高超声速飞行器 |
| 文章编号： | 0258-1825(2002)02-0184-08 |
| 修稿时间： | 2001-08-05 |
Numerical simulation of hypersonic ionized flows |
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| GAO Tie suo ,LI Chun xuan ,DONG Wei zhong ,ZHANG Qiao yun. Numerical simulation of hypersonic ionized flows[J]. Acta Aerodynamica Sinica, 2002, 20(2): 184-191 |
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| Authors: | GAO Tie suo LI Chun xuan DONG Wei zhong ZHANG Qiao yun |
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| Affiliation: | GAO Tie suo 1,LI Chun xuan 1,DONG Wei zhong 2,ZHANG Qiao yun 2 |
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| Abstract: | In this paper, The algorithm of implicit Lower Upper decomposition and chemical model of 7 species 15 reactions are adopted to simulate numerically hypersonic ionized air flow, based on three dimensional Navier Stokes equations.First, symmetric TVD scheme, AUSMPW+ scheme and Van Leer's flux vector splitting scheme are used to calculate the hypersonic flow over a hemi sphere and the computational results corresponding to the three scheme are compared and analyzed. Then the flows over the model for RAM C flight test at three altitudes (81km, 71km and 61km) are numerically simulated with the symmetric TVD and AUSMPW+ scheme, the computed electron number densities in the flowfield compare well with the experimental data. |
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| Keywords: | chemical nonequilibrium flows electron number density numerical schemes |
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