Modeling the effect of freestream turbulence on unsteady boundary layer flow

被引：4

作者：

Aleksin V.A.

Kazeykin S.N.

机构：

来源：

Fluid Dynamics | 2000年 / 35卷 / 6期

关键词：

Boundary Layer; Reynolds Number; Turbulence Model; Turbulence Intensity; Flow Property;

D O I：

10.1023/A:1004188524485

中图分类号：

学科分类号：

摘要：

We present a new version of the two-equation turbulence model, which makes it possible to calculate continuously the entire flow range from laminar to turbulent, including transition, in the case of a time-periodic, high-turbulence-level freestream. The influence of the parameters characterizing the harmonic fluctuations of the external velocity and the freestream turbulence intensity and scale on the parameters of the flat-plate flow are analyzed. A comparison of the numerical solutions with the experimental and theoretical data indicates the possibility of describing the wall flow properties on the basis of a quasi-stationary turbulence model, as the Reynolds number varies from low to high values.

引用

页码：846 / 857

页数：11

共 16 条

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