Citation:
ZHANG Bo*,ZHANG Yu-wen and YUAN Xu-long.Effects of the profile of a supercavitating vehicle’s front-end on supercavity generation[J].Journal of Marine Science and Application,2009,(4):323-327.
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Effects of the profile of a supercavitating vehicle’s front-end on supercavity generation
ZHANG Bo*,ZHANG Yu-wen and YUAN Xu-long.Effects of the profile of a supercavitating vehicle’s front-end on supercavity generation[J].Journal of Marine Science and Application,2009,(4):323-327.
Info
- Title:
- Effects of the profile of a supercavitating vehicle’s front-end on supercavity generation
- Author(s):
- ZHANG Bo*; ZHANG Yu-wen and YUAN Xu-long
- Affilations:
- Keywords:
- cavitation; supercavitating vehicle; volumetric gas flow rate; front profile; supercavitation generation speed
- DOI:
- -
- Abstract:
- The authors designed three different front profiles for supercavitating vehicles based on cavity theory and the Granville streamlined equation are designed. Experiments were done using these front profiles in the Northwestern Polytechnical University high-speed water tunnel. The experiments indicated that the critical volume of gas required for supercavitation is affected by the axial distribution of the front-end’s slope. The experimental data showed critical gas flow rates required for the three designs were less than mod-1, with the greatest decrease 24%. The experimental results also showed the supercavitation generation speeds of the models were faster than mod-1 by up to 32.4%. This verifies that the front profile of a supercaviting vehicle effects supercavity generation speed and critical gas flow rates. The smaller the changes in axial distribution of pressure, the higher the supercavity generation speed. The smaller the changes in curvature distribution of axial, the smaller the critical gas flow rates.
References:
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[5] WANG Haibin, ZHANG Jiazhong, WEI Yingjie, et al. Study on relations between cavity form and typical cavitator parameters[J]. Journal of Hydrodynamics, 2005 20(2): 251-258. [6] ZHANG Yuwen. Cavity theory and application[M]. Xi’an: Northwestern Polytechnical University Press, 2007.
[7] GRANVILLE P S. Geometrical characteristics of streamlined shapes[J]. Journal of Ship Rasearch, 1969, 13(4): .
Memo
- Memo:
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