Asymptotic Analysis of Viscous Fluctuations in Turbulent Boundary Layers

被引:0
|
作者
A. R. Gorbushin
V. B. Zametaev
机构
[1] Moscow Institute of Physics and Technology,
来源
Fluid Dynamics | 2018年 / 53卷
关键词
boundary layer; viscosity; unsteadiness; turbulence; asymptotic analysis; fluctuations;
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学科分类号
摘要
A two-dimensional boundary layer of an incompressible viscous fluid is investigated in the presence of velocity and pressure fluctuations. The characteristic Reynolds number is high and, as a consequence, the unsteady (turbulent) boundary layer is thin. An asymptotic approach is used to analyze the complete unsteady Navier–Stokes equations, which makes it possible to separate out the characteristic viscous and inviscid flow zones in the boundary layer and to solve the corresponding problems. The analytical expressions for the viscous fluctuations governed by the Hamel equation with a large value of the parameter are derived.
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页码:9 / 20
页数:11
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