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提出了一种基于Zwart-Gerber-Belamri空化模型的复杂外形潜射导弹空化流数值计算方法。分析了出水速度及攻角对弹体各部件空泡的影响。结果表明,出水过程初期空化数降低使附体空泡迅速扩大,随后空泡脱落与振荡的影响将更为显著;零攻角出水时,随出水速度上升,肩空泡长度及厚度呈线性增长,突起物诱导临近弹体空化能力增强,舵空化变化不显著。5°攻角以下,攻角对肩空化非对称性及舵空化的影响较小;10°攻角时肩空化不对称性显现,舵空化面积迅速增大;20°攻角以内,攻角变化对突起物空化的影响不显著。
A numerical calculation method for cavitation flow of complex submarine-launched missile based on Zwart-Gerber-Belamri cavitation model is proposed. The effect of water velocity and angle of attack on the cavitation of each component of the projectile was analyzed. The results show that the cavitation number increases rapidly at the initial stage of effluent, and then the effect of voids shedding and oscillation will be more significant. When the water at zero angle of attack increases, the length and thickness of shoulder cavities become linear Growth, protuberance induced cavitation near the projectile ability to enhance the changes in the steering cavitation was insignificant. 5 ° angle of attack, the angle of attack on shoulder cavitation asymmetry and rudder cavitation less; 10 ° angle of attack cavitation asymmetry appears, the rudder cavitation area increases rapidly; within 20 ° angle of attack , The influence of the change of angle of attack on the cavitation of the protrusion is not significant.