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| 块体形状对水流拖曳力的影响 | |
| 引用本文： | 庞启秀,徐金环,辛海霞.块体形状对水流拖曳力的影响[J].水道港口,2006,27(1):5-8,22. |
| 作者姓名： | 庞启秀 徐金环 辛海霞 |
| 作者单位： | 1. 交通部天津水运工程科学研究所,天津,300456 2. 河海大学交通学院,南京,210098 3. 天津航道局,天津,300450 |
| 基金项目： | 江苏省重点学科建设项目 |
| 摘 要： | 在计算块体受到的水流拖曳力时,常借鉴针对球体所提出的公式,然而它并不能客观地反映出块体形状对拖曳力产生的影响。文中将块体形状概化为长方体,通过水槽试验测量了水流作用下不同尺度的大颗粒块体受到的水平拖曳力,研究了块体形状对水流拖曳力的影响,并提出了考虑块体形状影响的拖曳力计算公式。 |
| 关 键 词： | 水平拖曳力 块体形状 水槽试验 |
| 文章编号： | 1005-8443（2006）01-0005-04 |
| 收稿时间： | 2005-08-09 |
| 修稿时间： | 2005-08-092005-09-09 |
Effect of square- section cylinder shape on the drag force |
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| PANG Qi-xiu,XU Jin-huan,XIN Hai-xia.Effect of square- section cylinder shape on the drag force[J].Journal of Waterway and Harbour,2006,27(1):5-8,22. | |
| Authors: | PANG Qi-xiu XU Jin-huan XIN Hai-xia |
| Institution: | 1. Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China; 2. Traffic College of Hohai Unvi . , Nanjing 210098, China ; 3. Tianjin Dredging Company, Tianjin 300450, China |
| Abstract: | When calculating the drag force on the square-section cylinder,the formula for sphere is usually applied.However the effect of the shape on the hydrodynamic force cannot be reflected well.In the paper,the drag forces acting on the square-section cylinders are surveyed in the variable slope flume,and attention is paid to the effect of cylinder shape on the drag force.The variety relation between the drag and the cylinder shape is studied,and then the formula for the drag force calculation is presented,considering the effect of shape. |
| Keywords: | drag force square-section cylinder shape flume test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |