水下航行体出水空泡溃灭理论与计算

针对水下航行体出水空泡溃灭问题,采用细长体理论对其进行计算分析.在2维轴对称圆形空泡溃灭模型的基础上,建立有厚度水层中的拟3维空泡溃灭水动力学模型,并对水下航行体出水空泡溃灭过程进行计算分析.结果表明:空泡演化过程及空泡溃灭速度的计算结果与试验结果具有较好的一致性,可为航行体水下发射的水动力特性分析提供参考.

Cavitation Collapse Theory and Calculation in Out-of-water Progress ofUnderwater Vehicles

For cavitation collapse problem in the out-of-water progress of underwater vehicles, the cavitation collapse characteristic is analyzed by means of slender-body theory. Based on 2D axis-symmetric circular cavitation collapse model, the pseudo 3D cavitation collapse hydrodynamics model in thickness water layer is established. Carry out calculation analysis for cavitation collapse in out-of-water progress of underwater vehicle. The results of cavitation flows and velocity of the cavitation collapse show that the calculation results correspond well with the one of the test. It can provide some references to the analysis of the hydrodynamic characteristics on launch of underwater vehicles.