| 可压缩横流失稳及其控制 |
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| 引用本文： | 徐国亮,符松.可压缩横流失稳及其控制[J].力学进展,2012,42(3):262-273. |
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| 作者姓名： | 徐国亮 符松 |
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| 作者单位： | 1. 清华大学航天航空学院, 北京 100084;
2. 中国空气动力学发展与研究中心, 绵阳 621000 |
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| 摘 要： | 边界层流动转捩的预测与控制一直是流体力学研究中的一个重要问题. 三维边界层流动工程中十分常见, 而横流失稳是导致三维边界层流动转捩的主要原因. 本文综述了近些年来三维边界层失稳和转捩方面的研究概况. 从机理上讨论了横流扰动的感受性、首次失稳、二次失稳和转捩控制等方面的研究进展. 在数值计算方面, 简要概述了线性稳定性理论、非线性稳定性理论和直接数值模拟方法在横流失稳和转捩方面的应用.本文对横流失稳研究当前存在的问题进行了讨论, 对今后研究的发展趋势作了相应展望.
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| 关 键 词： | 横流 感受性 饱和横流涡 二次失稳 横流转捩 |
| 收稿时间： | 2010-11-15 |
| 修稿时间： | 2011-11-20 |
THE INSTABILITY AND CONTROL OF COMPRESSIBLE CROSS FLOWS |
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| XU Guoliang,FU Song.THE INSTABILITY AND CONTROL OF COMPRESSIBLE CROSS FLOWS[J].Advances in Mechanics,2012,42(3):262-273. |
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| Authors: | XU Guoliang FU Song |
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| Institution: | 1. School of Aerospace, Tsinghua University, Beijing 100084, China;
2. China Aerodynamics Research and Development Center, Mianyang 621000, China |
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| Abstract: | Boundary layer transition prediction and control is one of the most ambitions topics of research activities in aerodynamics. The crossflow instability of a three-dimensional boundary layer is a main factor aflecting the laminar transition. The current understanding of 3-d boundary-layer transition is reviewed. Recent advances in receptivity, primary instability, secondary instability and transition control of crossflow boundary layer flows are discussed. Challenges about compressible crossflow transition remain and prospects are presented as well. |
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| Keywords: | crossflow receptivity saturated crossflow vortex secondary instability crossflow transition |
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