Receptivity of the Flat-Plate Boundary Layer to Free-Stream Turbulence

被引：8

作者：

Ustinov, M. V.

机构：

来源：

FLUID DYNAMICS | 2003年 / 38卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

laminar-turbulent transition; turbulence; receptivity; boundary layer;

D O I：

10.1023/A:1025193905823

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The linear problem of generation of perturbations of a flat-plate boundary layer by external turbulence is solved. The turbulence is represented in the form of a set of space-and time-periodic vortex modes. It is shown that the boundary layer is most receptive to low-frequency longitudinal vorticity modes. The mean-square velocity fluctuations in the boundary layer and their spectrum are found for isotropic turbulence with a spectrum satisfying the Kolmogorov-Obukhov law.

引用

页码：397 / 408

页数：12