| 高超声速非平衡流场多个振动温度模型的数值研究 |
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| 引用本文： | 董维中,高铁锁,丁明松.高超声速非平衡流场多个振动温度模型的数值研究[J].空气动力学学报,2007,25(1):1-6. |
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| 作者姓名： | 董维中 高铁锁 丁明松 |
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| 作者单位： | 中国空气动力研究与发展中心,四川,绵阳,621000 |
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| 基金项目： | “十五”全国联合攻关重点课题“实用气动计算软件系统与实用算法研究”，“气动物理特性研究”资助 |
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| 摘 要： | 利用数值求解热化学非平衡Navier-Stokes方程的方法,建立了考虑一个和多个振动温度的高超声速热化学非平衡流场的CFD计算程序,并对半球模型和球锥模型进行了数值计算,研究结果表明:(1)各个分子组分的振动温度分布于考虑一个振动温度模型的振动温度周围,即一个振动温度模型的振动温度是多个振动温度模型的各个分子组分振动温度的一种平均值;(2)在模型身部,振动温度的峰值高于平动温度的峰值;在模型近尾出现振动温度冻结并高于平动温度。
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| 关 键 词： | 高超声速流动 非平衡效应 振动温度 |
| 文章编号： | 0258-1825（2007）01-0001-06 |
| 修稿时间： | 2005-06-21 |
Numerical studies of the multiple vibrational temperature model in hypersonic non-equilibrium flows |
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| DONG Wei-zhong,GAO Tie-suo,DING Ming-song.Numerical studies of the multiple vibrational temperature model in hypersonic non-equilibrium flows[J].Acta Aerodynamica Sinica,2007,25(1):1-6. |
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| Authors: | DONG Wei-zhong GAO Tie-suo DING Ming-song |
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| Institution: | China Aerodynamics Research and Development Center, Mianyang 621000, China |
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| Abstract: | The CFD code was developed for thermal and chemical non-equilibrium hypersonic flows by solving numerically Navier-Stokes equations, considering the vibrational energy mode of one or multiple vibrational temperature.Numerical simulations were done for thermal and chemical non-equilibrium hypersonic flows around a sphere and bunt-body,and the following research results were obtained:(1) the vibrational temperatures of molecular species are among the vibrational temperature of one temperature model,namely the vibrational temperature of one temperature model is the average of the vibrational temperatures of molecular species;(2)the peak value of vibrational temperature is higher than that of translational temperature at the body of bunt-body,and the frozen phenomenon of the vibrational temperature appears in the flow of afterbody. |
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| Keywords: | hypersonic flow non-equilibrium effect vibrational temperature |
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