| 攻角引起的高超声速进气道不起动/再起动特性分析 |
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| 引用本文： | 常军涛,于达仁,鲍文. 攻角引起的高超声速进气道不起动/再起动特性分析[J]. 航空动力学报, 2008, 23(5): 816-821 |
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| 作者姓名： | 常军涛 于达仁 鲍文 |
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| 作者单位： | 哈尔滨工业大学,科学技术研究院,哈尔滨,150001;哈尔滨工业大学,能源科学与工程学院,哈尔滨,150001;哈尔滨工业大学,能源科学与工程学院,哈尔滨,150001 |
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| 摘 要： | 起动/不起动是高超声速进气道的重要流动现象,其影响进气道的工作范围和再起动能力.首先对典型的高超声速进气道二维流场进行了数值模拟,对攻角变化引起的高超声速进气道不起动/再起动过程进行了研究.从流动稳定性的角度阐述了高超声速进气道不起动/再起动特性形成的原因,分析了高超声速进气道不起动/再起动过程中进气道性能参数随来流攻角的变化规律,最后对进气道的再起动条件进行了讨论.
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| 关 键 词： | 航空、航天推进系统 高超声速进气道 不起动 再起动 数值模拟 |
| 文章编号： | 1000-8055(2008)05-0816-06 |
| 收稿时间： | 2007-01-04 |
| 修稿时间： | 2007-01-04 |
Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream |
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| CHANG Jun-tao,YU Da-ren and BAO Wen. Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream[J]. Journal of Aerospace Power, 2008, 23(5): 816-821 |
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| Authors: | CHANG Jun-tao YU Da-ren BAO Wen |
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| Affiliation: | 1.School of Science and Technology Research, Harbin Institute of Technology, Harbin 150001, China2.School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Unstart/restart is one of most important phenomenon in hypersonic inlets,which affects the operation range and the restart capacity.A two-dimensional internal flow field of mixed-compression hypersonic inlets was simulated numerically.The flow characteristics of unstart/restart caused by variations of attack angle were also investigated.The reasons behind the formation of inlet unstart/restart was discussed from the viewpoint of hydrodynamic stability.The inlet performance parameters varying with angle of attack were analyzed.Finally,the condition of inlet restart was discussed. |
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| Keywords: | aerospace propulsion system hypersonic inlets unstart restart numerical simulation |
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