Roughness induced transient growth: Nonlinear effects

被引：0

作者：

Choudhari, M ^{[1
]}

Fischer, P

机构：

[1] NASA, Langley Res Ctr, Hampton, VA 23681 USA

[2] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA

来源：

SIXTH IUTAM SYMPOSIUM ON LAMINAR-TURBULENT TRANSITION | 2006年 / 78卷

关键词：

D O I：

暂无

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Numerical simulations are used to model the disturbance field associated with a spanwise periodic array of circular disks in a laminar boundary layer. Besides capturing the major trends from the recent wind tunnel measurements by White and Ergin (2003), the simulations reveal the intricate effects of disturbance nonlinearity and roughness geometry on the transient growth characteristics in the wake of the roughness array and provide a numerical database for validating detailed features of optimal growth theory in the context of roughness induced stationary disturbances.

引用

页码：237 / +

页数：2

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