疏水表面减阻环带实验研究 | |
宋保维1; 郭云鹤1; 罗荘竹2; 徐向辉3; 王鹰1 | |
刊名 | ACTA PHYSICA SINICA |
2013-08-01 | |
卷号 | 62期号:15页码:7 |
关键词 | Hydrophobic Surface Annulus Experiment Roughness Drag Reduction |
ISSN号 | 1000-3290 |
DOI | 10.7498/aps.62.154701 |
其他题名 | Investigation about drag reduction annulus experiment of hydrophobic surface |
英文摘要 | For the drag reduction application of hydrophobic material, the drag characteristic of typical surface with different roughness or different hydrophobicity is studied by a new annulus experiment. The corresponding torque characteristic and drag reduction rate curve are acquired. The experiment indirectly calculate the surface friction of the annulus by measuring the torque of disk driving annulus and breaks through the limitation of scale in traditional microchannel experiment, avoids the drawbacks of too many influencing factors in water-tunnel experiment, and has important significance in macro application of hydrophobic material. The drag reduction effect of hydrophobic surface is proved at low Reynolds number in macroscale; however, at high Reynolds number, it will be weakened or even changed to drag producing effect, and the rapid increase of pressure drag is the major reason for increasing resistance. Through comparative analysis we find that at low Reynolds number, there will be greater effect of hydrophobicity for drag reduction; where as at high Reynolds number, the roughness will play a greater role, and may even be counterproductive to the increasing resistance. |
资助项目 | Key Program of the National Natural Science Foundation of China[50835009] ; National Natural Science Foundation of China[51109178] ; Natural Science Basic Research Plan in Shanxi Province of China[2010JQ1009] |
WOS研究方向 | Physics |
语种 | 中文 |
出版者 | CHINESE PHYSICAL SOC |
WOS记录号 | WOS:000323650000036 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.138/handle/2HOD01W0/606] |
专题 | 中国科学院重庆绿色智能技术研究院 |
作者单位 | 1.西北工业大学, 航海学院, 西安 710072 2.中国科学院重庆绿色智能技术研究院, 重庆 401122 3.中国科学院兰州化学物理研究所, 兰州 730000 |
推荐引用方式 GB/T 7714 | 宋保维,郭云鹤,罗荘竹,等. 疏水表面减阻环带实验研究[J]. ACTA PHYSICA SINICA,2013,62(15):7. |
APA | 宋保维,郭云鹤,罗荘竹,徐向辉,&王鹰.(2013).疏水表面减阻环带实验研究.ACTA PHYSICA SINICA,62(15),7. |
MLA | 宋保维,et al."疏水表面减阻环带实验研究".ACTA PHYSICA SINICA 62.15(2013):7. |
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