Non-parallel-flow effect on compressible boundary layer on a flat plate

被引：0
|
作者：
Huang, Zhangfeng [1 ,2 ]
Wu, Xuesong [1 ,3 ]
机构：
[1] Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China
[2] CARDC, State Key Lab Aerodynam, Mianyang 621000, Sichuan, Peoples R China
[3] Imperial Coll London, Dept Math, London SW7 2AZ, England
来源：
FRONTIERS IN FLUID MECHANICS RESEARCH | 2015年 / 126卷
关键词：
non-parallel flow; linear stability theory; compressible flow; boundary layers; eigenvalue problem; STABILITY; EQUATIONS;
D O I：
10.1016/j.proeng.2015.11.182
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Instability of boundary layers is an important aspect of laminar flow - turbulence transition. A local, simple and non-perturbative approach to spatial instability of three-dimensional compressible boundary layers, referred to as 'extended eigenvalue' or 'EEV' approach, is presented, in which both the streamwise variation of the mean flow and the shape distortion of the disturbance are taken into account. In the case of compressible Blasius boundary layer on a flat plate, the predictions are verified and confirmed by direct numerical simulation results, and the non-parallel effects on eigenvalues, eigenfunctions and neutral curves for different Mach numbers are discussed. (C) 2015 Published by Elsevier Ltd.
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页码：78 / 82
页数：5
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