| 高超声速升力体飞行器等离子体鞘数值模拟 |
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| 引用本文： | 吉君君,田正雨,柴金磊,李桦.高超声速升力体飞行器等离子体鞘数值模拟[J].宇航学报,2016,37(11):1384-1391. |
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| 作者姓名： | 吉君君 田正雨 柴金磊 李桦 |
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| 作者单位： | 国防科学技术大学航天科学与工程学院，长沙410073 |
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| 基金项目： | 国家自然科学基金（11472004） |
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| 摘 要： | 为探究高超声速再入过程中通信“黑障”的影响因素，基于一种化学反应平衡气体组分模型，采用有限体积法求解三维全N-S方程，数值方法采用AUSMPW+格式和LU-SGS隐式求解方法，模拟典型球锥体的高超声速流场，得到的电子数密度分布同RAM-C II飞行试验数据吻合良好。并针对一种升力体外形飞行器进行计算，选取高度范围35~55〖KG*9〗km、马赫数12~25、攻角10°~30°共14个飞行状态，得到了不同状态下的飞行器周围的电子数密度分布情况，对比分析发现电子数密度值与飞行高度、马赫数以及攻角的大小关系密切。
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| 关 键 词： | 高超声速 再入 等离子体鞘 化学反应平衡 电子数密度 升力体 |
| 收稿时间： | 2016-05-25 |
Numerical Simulation of Plasma Sheath for a Hypersonic Lifting Body Vehicle |
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| JI Jun jun,TIAN Zheng yu,CHAI Jin lei,LI Hua.Numerical Simulation of Plasma Sheath for a Hypersonic Lifting Body Vehicle[J].Journal of Astronautics,2016,37(11):1384-1391. |
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| Authors: | JI Jun jun TIAN Zheng yu CHAI Jin lei LI Hua |
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| Institution: | College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073，China |
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| Abstract: | In order to investigate the influence factors of the reentry blackout, based on a calculation method for equilibrium gas chemical reaction model components, using the finite volume method to solve the three-dimensional N-S equations, and using AUSMPW+ scheme and LU-SGS implicit method, the typical sphere cone hypersonic flow field is simulated. The electron density distribution is in good agreement with the data of flight test . Also, the electron density of a lifting body vehicle is calculated, with a range of altitudes of 35~55〖KG*9〗km, Mach numbers of 12~25 and attack angles of 10°~30°. Some conclusions of the electron distribution are obtained. |
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| Keywords: | Hypersonic Reentry Plasma sheath Chemical equilibrium Electron density Lifting body |
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