| 粗糙元对高超声速边界层转捩影响的研究进展 |
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| 引用本文： | 董昊,刘是成,程克明.粗糙元对高超声速边界层转捩影响的研究进展[J].实验流体力学,2018,32(6):1-15. |
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| 作者姓名： | 董昊 刘是成 程克明 |
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| 作者单位： | 南京航空航天大学 航空宇航学院, 南京 210016 |
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| 基金项目： | 国家自然科学基金项目11872208装备预研领域基金项目61402060301 |
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| 摘 要： | 高超声速边界层转捩对高超声速飞行器气动设计具有重要影响。转捩控制一直是转捩研究的主要目的之一，在高超声速情况下主要采用粗糙元进行边界层转捩控制。回顾了近年来不同类型粗糙元对高超声速边界层转捩影响及控制的最新研究进展；从粗糙元对高超声速边界层的感受性问题以及横流失稳影响的角度，介绍了其在高超声速边界层转捩机理相关研究中的作用；简要介绍了南京航空航天大学高超声速风洞（NHW）的油膜干涉测量技术在粗糙元诱导的高超声速边界层转捩研究中的应用；讨论了当前粗糙元对高超声速边界层转捩影响研究存在的问题，展望了该研究未来发展趋势。
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| 关 键 词： | 粗糙元 高超声速 边界层转捩 转捩控制 感受性 横流失稳 |
| 收稿时间： | 2018-10-30 |
Review of hypersonic boundary layer transition induced by roughness elements |
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| Affiliation: | College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Hypersonic boundary layer transition plays an important role in aerodynamic design of hypersonic vehicles. Transition control is always one of the main purposes of the transition research. In the hypersonic flow, the roughness element is used to control the boundary layer transition. Firstly, this paper reviews the latest researches in hypersonic boundary layer transition control by various types of roughness elements in recent years. Then, from the perspective of the receptivity of the roughness elements to the hypersonic boundary layer and the crossflow stability, the role of the roughness element in the study of the hypersonic boundary layer transition mechanism is introduced based on the effect of the roughness element on hypersonic boundary layer transition. The application of the oil film interferometry technique in the study of hypersonic boundary layer transition induced by roughness elements in the hypersonic wind tunnel of Nanjing University of Aeronautics and Astronautics (NHW) is also briefly introduced. Finally, the existing problems in hypersonic boundary layer transition are discussed, and the future research trend is also prospected. |
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