Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Parametric investigation of hydrodynamic stability of a boundary layer on a flat plate over two-layer compliant coatings. / Darzhain, A. E.; Boiko, A. V.; Kulik, V. M. и др.
в: Thermophysics and Aeromechanics, Том 27, № 2, 01.03.2020, стр. 181-192.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Parametric investigation of hydrodynamic stability of a boundary layer on a flat plate over two-layer compliant coatings
AU - Darzhain, A. E.
AU - Boiko, A. V.
AU - Kulik, V. M.
AU - Chupakhin, A. P.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - The results of a parametric study of hydrodynamic stability in linear formulation of the Blasius boundary layer stability over two-layer compliant coatings are presented. In the calculations, experimental data for real silicon rubbers of several types on the elasticity modulus and the loss factor as functions of deformation frequency are used. Eight pairs of the coatings have been considered. The effect of coating layer thickness and external flow velocity on flow stability, in particular, on the behavior of the critical Reynolds number, has been studied parametrically. The regions of the critical Reynolds number of nonmonotonic nature, characteristic of most of coatings under consideration, have been found. A qualitative explanation of this effect is given. An analysis of the behavior of the critical Reynolds number allows determination of the optimal ratio of coating thicknesses for interaction with the flow.
AB - The results of a parametric study of hydrodynamic stability in linear formulation of the Blasius boundary layer stability over two-layer compliant coatings are presented. In the calculations, experimental data for real silicon rubbers of several types on the elasticity modulus and the loss factor as functions of deformation frequency are used. Eight pairs of the coatings have been considered. The effect of coating layer thickness and external flow velocity on flow stability, in particular, on the behavior of the critical Reynolds number, has been studied parametrically. The regions of the critical Reynolds number of nonmonotonic nature, characteristic of most of coatings under consideration, have been found. A qualitative explanation of this effect is given. An analysis of the behavior of the critical Reynolds number allows determination of the optimal ratio of coating thicknesses for interaction with the flow.
KW - boundary layer
KW - compliant coatings
KW - critical Reynolds number
KW - hydrodynamic instability
UR - http://www.scopus.com/inward/record.url?scp=85090083462&partnerID=8YFLogxK
U2 - 10.1134/S086986432002002X
DO - 10.1134/S086986432002002X
M3 - Article
AN - SCOPUS:85090083462
VL - 27
SP - 181
EP - 192
JO - Thermophysics and Aeromechanics
JF - Thermophysics and Aeromechanics
SN - 0869-8643
IS - 2
ER -
ID: 25303032