| 摘要: |
| 通过数值分析和风洞实验，研究在非均匀来流条件下，单级斜板型面变化对下游流场的影响。研究结果表明，小进口角，大出口角之凹型面具有较高的总压恢复。但是，曲壁面对降低出口处之静压畸变不利。折衷的选择为：以凹型面作为斜板的前段，其后续一平直段，以达到提高总压恢复，保持较低总静压畸变之目的。 |
| 关键词: 非均匀流 超声速进气道 进气道－发动机匹配 数值分析 最优设计 |
| DOI： |
| 分类号:V211.48 |
| 基金项目:国家自然科学基本资助 |
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| OPTIMAL DESIGN OF TWO DIMENSIONAL COMPRESSION SURFACE UNDER NON UNIFORM SUPERSONIC FLOW |
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Zhang Kunyuan, Xiao Xudong, Xu Hui
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Dept.of Power Engineering,Nanjing Univ.of Aeronautics and Astronautics,Nanjing,210016
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| Abstract: |
| The numerical and experimental study of 2 D compression surface was made under the non uniform supersonic incoming flow. The results of numerical optimization and wind tunnel test show that a best compression surface consists of two segments, the first one is a concave surface with a small entrance angle,the second one is a single wedge. A higher pressure recovery and lower pressure distortion was obtained in Mach 5 3 wind tunnel test. |
| Key words: Nonuniform flow Supersonic inlet Inlet engine matching Numerical analysis Optimum design |
