On stability of Poiseuille flow in grooved channels

被引：7

作者：

Boiko, A. V. ^{[1
,2
]}

Klyushnev, N. V. ^{[3
]}

Nechepurenko, Yu. M. ^{[3
,4
]}

机构：

[1] Russian Acad Sci, Khristianovich Inst Theoret & Appl Mech, Novosibirsk 630090, Russia

[2] Tyumen State Oil & Gas Univ, Tyumen 625000, Russia

[3] Russian Acad Sci, MV Keldysh Appl Math Inst, Moscow 125047, Russia

[4] Russian Acad Sci, Inst Numer Math, Moscow 119333, Russia

来源：

EPL | 2015年 / 111卷 / 01期

基金：

俄罗斯基础研究基金会; 俄罗斯科学基金会;

关键词：

BOUNDARY-LAYER; RIBLETS; VORTEX;

D O I：

10.1209/0295-5075/111/14001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The stability of Poiseuille flow in channels with walls grooved in the streamwise direction is investigated numerically. In the framework of physically justified scaling of velocity and length, an analysis of energy and linear critical Reynolds numbers was carried out in a practically important range of groove heights, sharpness and spacing. It is shown that there are such values of these parameters that both critical Reynolds numbers are higher than those for the flow in plane channel. Copyright (C) EPLA, 2015

引用

页数：6

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