| 引用本文: | 柳军,曾明,瞿章华.飞船再入舱三维化学非平衡流数值模拟.[J].国防科技大学学报,1999,21(6):9-12.[点击复制] |
| Liu Jun,Zeng Ming,Qu Zhanghua.Numerical Simulation of 3-D Chemical Non-equilibrium Flow over Reentry Capsule[J].Journal of National University of Defense Technology,1999,21(6):9-12[点击复制] |
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| 飞船再入舱三维化学非平衡流数值模拟 |
| 柳军, 曾明, 瞿章华 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 对飞船再入舱高超声速化学非平衡三维流场进行数值模拟。控制方程为含化学反应源项的全Navier-Stokes 方程组, 化学模型为高温空气的七组元模型, 其组元成分为N2、O2、NO、N、O、NO+、e-。差分格式采用张涵信院士提出的NND 激波捕捉格式并用全耦合方法处理流动方程及化学反应方程, 对化学反应源项采用全隐式处理, 运用时间预处理技术以加快收敛。同时, 也对完全气体模型进行计算, 以分析真实气体效应。与实验数据对比, 说明本文结果是可信的。 |
| 关键词: 飞船再入舱, 非平衡流, 气动力特性 |
| DOI： |
| 投稿日期：1999-03-15 |
| 基金项目: |
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| Numerical Simulation of 3-D Chemical Non-equilibrium Flow over Reentry Capsule |
| Liu Jun, Zeng Ming, Qu Zhanghua |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| The 3-D hypersonic chemical non-equilibrium flow over reentry capsule is simulated numerically. The full Navier-Stokes equations are taken as the governing equations. The chemical non-equilibrium air model is considered and seven species are N2、O2、NO、N、O、NO+、e-. Using NND Scheme for shock capture and implicit scheme to deal with the chemical source terms, the numerical results are in agreement compared with the experimental data. The perfect gas results are given for analysis of the real gas effect. |
| Keywords: Capsule, Non-equilibrium flow, Aerodynamics |
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