| 振动非平衡喷管流场的数值研究 |
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| 引用本文： | 黄华,瞿章华,柳军,曾明.振动非平衡喷管流场的数值研究[J].国防科技大学学报,1997,19(4):5-8. |
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| 作者姓名： | 黄华 瞿章华 柳军 曾明 |
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| 作者单位： | 国防科技大学航天技术系 |
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| 摘 要： | 从非定常的基本方程出发，采用时间相关法，利用带有平滑项的ＭａｃＣｏｒｍａｃｋ格式对以氮气为实验气体的一维振动非平衡喷管流场进行了数值计算。分析了不同条件下振动非平衡对流场的影响，确定了支配振动非平衡的主要因素。计算结果表明，对于一些实际应用的喷管条件，振动非平衡具有较为显著的影响。
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| 关 键 词： | 时间相关，喷管流，振动松弛 |
| 收稿时间： | 1996/11/1 0:00:00 |
Numerical Simulation of Vibration-Nonequilibrium Nozzle Flow |
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| Huang Hu,Qu Zhanghu,Liu Jun and Zeng Ming.Numerical Simulation of Vibration-Nonequilibrium Nozzle Flow[J].Journal of National University of Defense Technology,1997,19(4):5-8. |
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| Authors: | Huang Hu Qu Zhanghu Liu Jun and Zeng Ming |
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| Institution: | Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073 |
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| Abstract: | The quasi-one-dimensional vibrational-nonequilibrium nozzle flow of nitrogen gas is calculated numerically by using a time-dependent analysis. The explicit MacCormack scheme is used for the numerical solution. The vibrational-nonequilibrium effects of various flow parameters have been discussed and the important factor has been found. It is shown that for some practical nozzle conditions, the vibrational-nonequilibrium effects have significant influence on the freestream nozzle-flow properties. |
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| Keywords: | time-dependent nozzle-flow vibration relaxtion |
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