Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream

CHANG Jun-tao; YU Da-ren; BAO Wen

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Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream

更新时间：2026-07-07

- Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream
- Vol. 23, Issue 5, (2008)
- 作者机构：
  
  1. 哈尔滨工业大学科学技术研究院,哈尔滨,150001
  2. 哈尔滨工业大学能源科学与工程学院,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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CHANG Jun-tao, YU Da-ren, BAO Wen. Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream[J]. 2008, 23(5).
DOI：

CHANG Jun-tao, YU Da-ren, BAO Wen. Characteristic analysis of unstart/restart of hypersonic inlets caused by variations of attack angle of freestream[J]. 2008, 23(5). DOI：

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.

Abstract

Unstart/restart is one of most important phenomenon in hypersonic inlets

which affects the operation range and the restart capacity.Atwo-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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