计算物理 ›› 2004, Vol. 21 ›› Issue (1): 61-67.

• 研究论文 • 上一篇    下一篇

高超声速边界层流动转捩研究

刘嘉, 雷麦芳, 姚文秀, 王发民   

  1. 中国科学院力学研究所, 北京 100080
  • 收稿日期:2003-01-13 修回日期:2003-04-07 出版日期:2004-01-25 发布日期:2004-01-25
  • 作者简介:刘嘉(1970-),女,河北安国,博士,从事流动稳定性研究,北京安外安华里2区3号楼中国石油经济技术研究中心信息监测室100011.

Stability and Transition of Hypersonic Boundary Layer Flow

LIU Jia, LEI Mai-fang, YAO Wen-xiu, WANG Fa-min   

  1. Institute of Mechanics, CAS, Beijing 100080, China
  • Received:2003-01-13 Revised:2003-04-07 Online:2004-01-25 Published:2004-01-25

摘要: 针对高超声速飞行器前体预压缩性所需求的气动构型,开展了具有-级压缩效果的压缩面边界层的流动稳定性分析.采用有限体积法数值求解NS方程组得到基本流场,应用当地局部平行流假设和线性稳定性理论求解了扰动波参数的特征值问题.分析了来流马赫数M=6情况下二维扰动波的演化规律,并进-步关联扰动的空间放大率,结合EN方法进行了转捩预测.

关键词: 高超声速流动, 稳定性分析, 转捩

Abstract: The stability analysis and transition prediction are proceeded for one-order compression ramp,which is the valuable configuration for the hypersonic vehicles.The finite volume method is used to solve the NS equations to get the basic flow field.The solution of the eigenvalue problem is obtained by using the linear stability theory under the assumption of local parallel flows.The first mode and the second mode unstable waves are found at the Mach number of 6.With the relation of the temporal and spatial amplification rates,the transition position is predicted by the EN method.

Key words: hypersonic flow, stability analysis, transition

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