Research on the gas-leakage rate of unsteady ventilated supercavity

【Author】

Wang Zou 1,Kai-ping Yu 1,Xiao-hui Wan 2 The School of Astronautics,Harbin Institute of Technology Harbin,China

【Abstract】

The mechanism of gas-leakage is a basic problem of the unsteady ventilated supercavitation theory.This paper is devoted to the problem and presents a calculation formula of gas-leakage rate.The rate of volume change of supercavity is numerically calculated based on Logvinovich's Principle and the empirical formula.The dimensionless gasleakage rate formula is established by the nonlinear least square method based on the mass balance equation of gas.The formula and the existing quasistationary formula are respectively used to simulate the unsteady supercavity.The simulations are compared with the results from experiment.The result demonstrates that the formula is effective.

【Keywords】

Logvinovich's Principle;unsteady supercavity;gas-leakage rate.

References

To explore the background and basis of the node document

Springer Journals Database

Total: 15 articles

  • [1] J. H. Spurk, On the gas loss from ventilated supercavities, Acta Mechanica,
  • [2] Silberman E;Song C S, Instability of Ventilated Cavities, J. of Ship Res, Journal of Ship Research (Journal of Ship Research)
  • [3] Michel J M, Ventilated Cavities. A Contributian to the Study of Pulsation Mechanism,Unsteady Water Flow with High Velocities, Proc. of Int. Symposium IUTAM,
  • [4] Paryshev E V, Mathematical modeling of unsteady cavity flows, Fifth International Symposium on Cavitation (CAV2003),

More>>

Similar documents

Documents that have the similar content to the node document

Springer Journals Database

Total: 55 articles

More>>