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Chen Weiqi, Wang Baoshou, Yan Kai, Yi Shuqun. STUDY ON THE UNSTEADY VERTICAL CAVITY OF THE EXIT-WATER CAVITOR[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1): 76-82. DOI: 10.6052/0459-1879-12-164
Citation: Chen Weiqi, Wang Baoshou, Yan Kai, Yi Shuqun. STUDY ON THE UNSTEADY VERTICAL CAVITY OF THE EXIT-WATER CAVITOR[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1): 76-82. DOI: 10.6052/0459-1879-12-164

STUDY ON THE UNSTEADY VERTICAL CAVITY OF THE EXIT-WATER CAVITOR

Funds: The project was supported by the Foundation of Science and Technology on Hydrodynamics Laboratory (9140C220204110C2203).
  • Received Date: May 30, 2012
  • Revised Date: September 11, 2012
  • The unsteady vertical cavity produced by the underwater cavitator moving rapidly towards the water surface is investigated theoretically. The mathematical model of the unsteady vertical cavity under water is presented; the formula of the vertical cavity length influenced by the gravity and water surface is derived, and the life span of cavity shedding from exit-water cavitator is also obtained from the formula. For the underwater body with cavitator, the acting position in the body of the high-pressure produced by the collapsed cavity is also calculated by the formula; moreover, the condition and criterion of keeping the underwater body from collapse high-pressure is presented.
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