| 二阶迎风TVD数值格式在非平衡高超声速钝体绕流中的应用 |
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| 引用本文： | 胡光初,乐嘉陵,曹文祥.二阶迎风TVD数值格式在非平衡高超声速钝体绕流中的应用[J].力学学报,1994,26(2):139-148. |
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| 作者姓名： | 胡光初 乐嘉陵 曹文祥 |
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| 作者单位： | 中国空气动力研究与发展中心 |
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| 摘 要： | 将Ｈ．Ｃ．Ｙｅｅ所发展的一种二阶迎风ＴＶＤ格式运用于半球的高超声速化学非平衡黏性绕流的数值计算，详细介绍了流体力学方程组和化学组元守恒方程组全耦合求解的过程，以前这一研究领域中仅仅运用一阶格式及松散耦合的方法。化学松弛气体考虑了七组元（Ｏ，Ｏ＿２，ＮＯ，Ｎ，ＮＯ￣（＋），Ｎ＿２，ｅ￣（－））和主要的七反应，在驻点线上的计算结果与前人结果比较表明，本文有较大改进。
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| 关 键 词： | 迎风TVD格式，非平衡，化学松弛，钝体绕流 |
APPLICATIONS OF A SECOND-ORDER UPWIND TVD SCHEME TO NONEQUILIBRIUM HYPERSONIC FLOWS AROUND BLUNT-BODY |
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| Hu Guangchu,Le Jialing,Cao Wenxiang.APPLICATIONS OF A SECOND-ORDER UPWIND TVD SCHEME TO NONEQUILIBRIUM HYPERSONIC FLOWS AROUND BLUNT-BODY[J].chinese journal of theoretical and applied mechanics,1994,26(2):139-148. |
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| Authors: | Hu Guangchu Le Jialing Cao Wenxiang |
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| Abstract: | An explicit second-order upwind TVD scheme by H.C.Yee is first suc-cessfully extended to solve the viscous,diffussive,nonequilibrium,ionizing,hypersonic flowfields over a hemi-sphere.The governing gas-dynamic and species-continuity equations forlaminar flow are presented.The gas-dynamics/species continuity equations fully couplingprocedure is described in detail.Before this only the firstorder scheme and loosely coupledmethod was successfully used in this research field.The gais model for chemically relaxin... |
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| Keywords: | upwind TVD scheme nonequilibrium chemically relaxing blunt-bodyflows |
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