Mechanisms on transverse motions in turbulent wall flows

被引：178

作者：

Karniadakis, GE ^{[1
]}

Choi, KS

机构：

[1] Brown Univ, Div Appl Math, Providence, RI 02912 USA

[2] MIT, Dept Ocean Engn, Cambridge, MA 02139 USA

[3] Univ Nottingham, Sch Mech Mat & Mfg Engn & Management, Nottingham NG7 2RD, England

来源：

ANNUAL REVIEW OF FLUID MECHANICS | 2003年 / 35卷

关键词：

turbulence; drag reduction; streak instability; boundary layers;

D O I：

10.1146/annurev.fluid.35.101101.161213

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Drag reduction in wall-bounded flows can be achieved by transverse motions imposed by passive means, e.g., riblets, or by external forcing, such as wall oscillation or transverse traveling-wave excitation. In this article, we review possible physical mechanisms responsible for turbulent drag reduction and corresponding near-wall flow modification.

引用

页码：45 / 62

页数：22