Experimental investigation on underwater drag reduction using partial cavitation
For underwater drag reduction, one promising idea is to form a continuous gas or discrete bubbly layer at the submerged surface. Owing to the lower viscosity of gas than of water, this could considerably reduce underwater drag by achieving slippage at the liquid–gas interface. This paper presents an...
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| Published in | Chinese physics B Vol. 26; no. 5; pp. 265 - 270 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.05.2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1056 2058-3834 |
| DOI | 10.1088/1674-1056/26/5/054701 |
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| Abstract | For underwater drag reduction, one promising idea is to form a continuous gas or discrete bubbly layer at the submerged surface. Owing to the lower viscosity of gas than of water, this could considerably reduce underwater drag by achieving slippage at the liquid–gas interface. This paper presents an experimental investigation on underwater drag reduction using partial cavitation. Dense hydrophobic micro-grooved structures sustain gas in the valleys, which can be considered as defects that weaken the strength of the water body. Therefore, partial cavities are easily formed at lower flow speeds, and the dense cavities connect to form a lubricating gas layer at the solid–liquid interface. The results indicate that the proposed method achieves drag reduction without any additional energy or gas-providing devices, which should stimulate the development of underwater vehicles. |
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| AbstractList | For underwater drag reduction, one promising idea is to form a continuous gas or discrete bubbly layer at the submerged surface. Owing to the lower viscosity of gas than of water, this could considerably reduce underwater drag by achieving slippage at the liquid–gas interface. This paper presents an experimental investigation on underwater drag reduction using partial cavitation. Dense hydrophobic micro-grooved structures sustain gas in the valleys, which can be considered as defects that weaken the strength of the water body. Therefore, partial cavities are easily formed at lower flow speeds, and the dense cavities connect to form a lubricating gas layer at the solid–liquid interface. The results indicate that the proposed method achieves drag reduction without any additional energy or gas-providing devices, which should stimulate the development of underwater vehicles. |
| Author | 王宝 汪家道 陈大融 孙娜 王涛 |
| AuthorAffiliation | State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China Science Technology on Vehicle Transmission Laboratory, China North Vehicle Research Institute, Beijing 100161, China |
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| CitedBy_id | crossref_primary_10_1007_s40544_023_0842_7 crossref_primary_10_1016_j_oceaneng_2022_111719 crossref_primary_10_1088_1674_1056_acc8c2 crossref_primary_10_1016_j_ijmecsci_2024_109326 crossref_primary_10_1016_j_oceaneng_2024_118446 crossref_primary_10_1088_1674_1056_ac0da6 crossref_primary_10_17721_2706_9699_2021_1_09 crossref_primary_10_1016_j_eml_2019_01_005 crossref_primary_10_1016_j_triboint_2025_110545 |
| Cites_doi | 10.1088/1674-1056/22/8/088702 10.1103/PhysRevLett.106.214501 10.1103/PhysRevLett.106.014502 10.2514/3.12171 10.1002/(ISSN)1521-3757 10.1111/j.1559-3584.1973.tb04788.x 10.1246/cl.2010.482 10.1063/1.3605575 10.1246/cl.131215 10.1080/08916152.2011.582569 10.1039/B917861A 10.2514/3.60126 10.1063/1.3127123 10.1016/j.ces.2005.09.006 10.1017/jfm.2013.184 10.1016/j.oceaneng.2014.01.015 10.1063/1.1432696 10.1098/rsta.2010.0359 10.1063/1.4791602 10.1063/1.2191848 10.1017/S0022112098001530 10.1063/1.1896405 10.1007/s11434-010-4163-7 10.1016/j.ijheatmasstransfer.2012.04.055 10.1002/ceat.201100428 10.1155/2014/574381 10.1007/s11434-007-0120-5 10.1016/j.ijheatmasstransfer.2012.04.053 10.1017/S0022112096004673 10.1016/j.oceaneng.2011.09.013 10.1017/S002211200999187X 10.1021/la2043729 10.1016/j.tsf.2007.04.086 10.1007/BF03183400 10.1039/C0SM00595A 10.1016/S1001-6058(10)60089-3 10.1039/c2sm26655e 10.1103/PhysRevLett.105.166104 10.1073/pnas.1304403110 |
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| Notes | underwater cavitation considerably dense viscosity sustain hydrophobic submerged defects hydrophilic For underwater drag reduction, one promising idea is to form a continuous gas or discrete bubbly layer at the submerged surface. Owing to the lower viscosity of gas than of water, this could considerably reduce underwater drag by achieving slippage at the liquid–gas interface. This paper presents an experimental investigation on underwater drag reduction using partial cavitation. Dense hydrophobic micro-grooved structures sustain gas in the valleys, which can be considered as defects that weaken the strength of the water body. Therefore, partial cavities are easily formed at lower flow speeds, and the dense cavities connect to form a lubricating gas layer at the solid–liquid interface. The results indicate that the proposed method achieves drag reduction without any additional energy or gas-providing devices, which should stimulate the development of underwater vehicles. Bao Wang1, Jiadao Wang1, Darong Chen1, Na Sun1,2, Tao Wang1,3（ 1 State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China ;2School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China ;3 Science Technology on Vehicle Transmission Laboratory, China North Vehicle Research Institute, Beijing 100161, China） 11-5639/O4 |
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| References | 22 44 23 24 25 26 Zheng X B (17) 2016; 25 27 28 29 Li F C (10) 2012; 21 Rajabi H (5) 2013; 22 30 31 11 33 12 35 14 36 15 37 16 38 39 18 19 Sayyaadi H (34) 2013; 20 1 2 Li F C (13) 2015; 24 3 4 6 7 8 9 Sun W Y (32) 2013 40 41 20 42 21 43 |
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| Title | Experimental investigation on underwater drag reduction using partial cavitation |
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