Experimental Study of Turbulent Boundary Layers on Groove/Smooth Flat Surfaces
文献类型：期刊论文
| 作者 | Hongwei MA; Qiao TIAN; Hui WU |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2005 |
| 卷号 | 14期号:3页码:193,197 |
| 关键词 | Streamwise Groove Turbulent Boundary Layer Drag Reduction Mechanism Coherent Structure Hydrogen-bubble Flow Visualization. |
| 英文摘要 | This paper presents an experimental investigation of the turbulent boundary layers on both groove and smooth flat surfaces. The flow structures were shown in a water tunnel using the hydrogen-bubble flow visualization technique. The measurement results indicate that: (1) the grooves can effectively reduce accumulation of low-speed fluids, decrease the number of the low-speed streaks and depress oscillation of the streaks in the sublayer; (2) the grooves can restrain forming of the horseshoe vortices in the buffer region; (3) the grooves bate oscillation and kinking of the quasi-streamwise vortices and restrain production of the hairpin vortices and the ring vortices, reducing both frequency and intensity of the turbulence bursting; (4) the grooves directly affect the flow structures in the sublayer of the boundary layer and then modulate the flow field up to the buffer region and the logarithmic region by restraining development and interaction of the vortices. |
| 公开日期 | 2013-03-11 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/53212]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | Hongwei MA,Qiao TIAN,Hui WU. Experimental Study of Turbulent Boundary Layers on Groove/Smooth Flat Surfaces[J]. JOURNAL OF THERMAL SCIENCE,2005,14(3):193,197. |
| APA | Hongwei MA,Qiao TIAN,&Hui WU.(2005).Experimental Study of Turbulent Boundary Layers on Groove/Smooth Flat Surfaces.JOURNAL OF THERMAL SCIENCE,14(3),193,197. |
| MLA | Hongwei MA,et al."Experimental Study of Turbulent Boundary Layers on Groove/Smooth Flat Surfaces".JOURNAL OF THERMAL SCIENCE 14.3(2005):193,197. |
入库方式： OAI收割
来源：工程热物理研究所
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