On turbulent contribution to frictional drag in wall-bounded turbulent flow

被引：0
|
作者：
Li Feng-Chen [1 ]
Kawaguchi, Yasuo
Hishida, Koichi
Oshima, Marie
机构：
[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China
[2] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
[3] Tokyo Univ Sci, Dept Mech Engn, Noda, Chiba 2788510, Japan
[4] Keio Univ, Dept Syst Design Engn, Yokohama, Kanagawa 2238522, Japan
来源：
CHINESE PHYSICS LETTERS | 2006年 / 23卷 / 05期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a simple model for turbulent contribution to the frictional drag in a wall-bounded turbulent How based on the characteristic parameters of turbulent bursting events. It is verified on water and drag-reducing surfactant solution flows investigated by particle image velocimetry in experiments. It is obtained that the turbulent contribution to the skin friction factor is linearly proportional to the product of the spatial frequency and strength of turbulent bursts originated from the wall.
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页码：1226 / 1229
页数：4
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