Comparison of amplitude method of roughness-induced swept-wing transition prediction with experiment

被引：8

作者：

Ustinov, M. V. ^{[1
]}

Kachanov, Y. S. ^{[2
]}

机构：

[1] Cent Aerohydrodynam Inst TsAGI, 1 Zhukovsky Str, Zhukovskii 140180, Russia

[2] Khristianovich Inst Theoret & Appl Mech, Novosibirsk 630090, Russia

来源：

PHYSICS OF FLUIDS | 2021年 / 33卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

3-DIMENSIONAL BOUNDARY-LAYER; CROSS-FLOW VORTICES; SECONDARY INSTABILITY; STABILITY; RECEPTIVITY;

D O I：

10.1063/5.0057853

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An amplitude method of laminar-turbulent transition prediction in the boundary layer on a swept wing has been developed and tested. The method computes the amplitudes and spectra of steady cross-flow instability modes generated by surface roughness. The transition criterion is based on the crucial, threshold values of maximal or local amplitudes of these perturbations found from experiments. Statistical methods describing the intermittency in the transition zone based on this criterion are proposed.

引用

页数：16

共 36 条

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