| 引用本文: | 陈伟芳,张志成,石于中,等.再入体表面脉动压力环境的预测.[J].国防科技大学学报,2001,23(6):20-23.[点击复制] |
| CHEN Weifang,ZHANG Zhicheng,SHI Yuzhong,et al.The Prediction of Fluctuating Pressure on the Surface of Reentry Vehicles[J].Journal of National University of Defense Technology,2001,23(6):20-23[点击复制] |
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| 再入体表面脉动压力环境的预测 |
| 陈伟芳, 张志成, 石于中, 王全利, 吴其芬 |
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(国防科技大学 航天与材料工程学院, 湖南 长沙 410073)
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| 摘要: |
| 在较宽的攻角范围内，考察了超声速和高超声速流场中一类球头双锥再入体表面脉动压力的分布特性，并基于超声速和高超声速流动情况下再入体表面的压力分布给出一套预测表面脉动压力分布的工程方法。利用该方法研究了马赫数、攻角、壁面温度等因素对再入体表面脉动压力环境的影响。计算结果表明，在本文的计算条件范围内，预测的均方根脉动压力系数分布与实验结果基本一致。 |
| 关键词: 再入体 脉动压力 超声速和高超声速 |
| DOI： |
| 投稿日期：2001-04-15 |
| 基金项目: |
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| The Prediction of Fluctuating Pressure on the Surface of Reentry Vehicles |
| CHEN Weifang, ZHANG Zhicheng, SHI Yuzhong, WANG Quanli, WU Qifen |
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(College of Aerospace and Materials Engineering,National Univ. of Defense Technology, Changsha 410073,China)
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| Abstract: |
| The fluctuating pressure distribution on the surface of the sphere-biconic reentry vehicle in a wide range of attack angles is investigated in the supersonic and hypersonic flow field. Based on the mean pressure distribution, some engineering correlation has been developed. Then utilizing the developed techniques, we investigate the effects of Mach number, attack angle and wall temperature and achieve a series of reasonable results comformable to test data. |
| Keywords: reentry vehicles fluctuating pressure supersonic and hypersonic |
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