Global sustained perturbations in a backward-facing step flow

被引：4
|
作者：
Marquet, Olivier [1 ]
Sipp, Denis [1 ]
机构：
[1] ONERA DAFE, F-92190 Meudon, France
来源：
SEVENTH IUTAM SYMPOSIUM ON LAMINAR-TURBULENT TRANSITION | 2010年 / 18卷
关键词：
D O I：
10.1007/978-90-481-3723-7_91
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The two-dimensional stability of a backward-facing step flow is investigated at the low Reynolds number Re = 500 A method is proposed to determine the optimal energy growth of linear perturbations sustained by harmonic forcing The maximum sustained energy growth is of order 10(5) at frequency f(s) similar to 0 08 and is related to convective instabilities growing in the shear layer of the separated flow.
引用
收藏
页码：525 / 528
页数：4
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