Analysis of Stability of the Boundary Layer on a Flat Plate under a Finite-Thickness Two-Layer Compliant Coating

被引：0

作者：

A. E. Darzhain

A. V. Boiko

V. M. Kulik

A. P. Chupakhin

机构：

[1] Russian Academy of Sciences,Lavrentyev Institute of Hydrodynamics, Siberian Branch

[2] Novosibirsk State University,Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch

[3] Russian Academy of Sciences,Kutateladze Institute of Thermophysics, Siberian Branch

[4] Tyumen State University,undefined

[5] Russian Academy of Sciences,undefined

来源：

Journal of Applied Mechanics and Technical Physics | 2019年 / 60卷

关键词：

compliant coatings; boundary layer; hydrodynamic instability;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Results of studying stability of the Blasius boundary layer on a two-layer compliant coating in the linear formulation are reported. The computations are based on experimental parameters of viscoelasticity of a real coating, which reveal the dependences of its elasticity modulus and loss coefficient on frequency. Parametric investigations of the influence of the coating layer thicknesses and free-stream velocity on flow stability, in particular, on the critical Reynolds number, are performed. Regions of a nonmonotonic behavior of the critical Reynolds number are found, which allow one to determine the optimal thicknesses of the upper and lower layers for intense interaction with the flow. An explanation of this effect is proposed.

引用

页码：620 / 630

页数：10

共 27 条

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