Experimental investigation on turbulent channel flow utilizing spanwise oscillating Lorentz force

被引：9
|
作者：
Mei Dong-Jie [1 ]
Fan Bao-Chun [1 ]
Chen Yao-Hui [1 ]
Ye Jing-Fang [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sci & Technol Transient Phys Lab, Nanjing 210094, Peoples R China
来源：
ACTA PHYSICA SINICA | 2010年 / 59卷 / 12期
关键词：
turbulence; spanwise oscillating Lorentz force; drag reduction; near-wall turbulent structure; BOUNDARY-LAYER; DRAG REDUCTION; OPEN-LOOP; BODY;
D O I：
10.7498/aps.59.8335
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Experimental investigation on the effect of using spanwise oscillating Lorentz force to control near-wall turbulence is presented in this paper. The effects of spanwise oscillating Lorentz force on macroscopic flow field, near-wall coherent structure and skin friction are discussed. Direct numerical simulation is carried out to verify the experimental results. The results from experiment and numerical simulation suggest that the spanwise oscillating Lorentz force can make the macroscopic flow field oscillating periodically, the streak structures are twisted into the spanwise direction and the skin friction is reduced.
引用
收藏
页码：8335 / 8342
页数：8
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