Linear stability of nearly parallel symmetric flows in a channel

被引：1

作者：

Hifdi, A ^{[1
]}

Touhami, MO ^{[1
]}

Naciri, JK ^{[1
]}

机构：

[1] Fac Sci Ain Chock, Lab Mecan, Casablanca, Morocco

来源：

COMPTES RENDUS MECANIQUE | 2004年 / 332卷 / 10期

关键词：

fluid mechanics; entry flows; symmetric perturbations; linear stability; Orr-sommerfeld equation; spectral method;

D O I：

10.1016/j.crme.2004.06.007

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this Note, we present a temporal linear stability analysis of symmetric developing flows slightly perturbed from Poiseuille flow. The Chebyshev spectral collocation method is used to resolve the Orr-Sonamerfeld equation. For the main flow, the solution considered is analytic. The results of the stability study depend essentially on the shape and amplitude of the velocity profiles imposed at the channel entry. (C) 2004 Academie des sciences. Publie par Elsevier SAS. Tous droits reserves.

引用

收藏

页码：859 / 866

页数：8

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