数值模拟通气角度对超空泡形态特性影响分析  

NUMERICAL ANALYSIS OF THE INFLUENCE OF ANGLE OF VENTILATION ON THE SHAPES OF SUPERCAVITY

作　　者：黄海龙[1] 黄文虎[1] 王聪[1] 黄庆新[1] 黄薇[2] 

机构地区：[1]哈尔滨工业大学航天学院,一般力学哈尔滨150001 [2]浙江工业大学工业设计系,杭州310032

出　　处：《工程力学》2007年第z2期195-198,208,共5页Engineering Mechanics

基　　金：黑龙江省自然科学基金重点项目(ZJG03-1)

摘　　要：基于混合网格,运用N-S方程及k-ε湍流模型对均质超空泡流场求解。应用全空泡模型对在后体角度<通气角度α≤90o变化范围的通气超空泡进行模拟。仿真结果与实验结果二者变化规律相一致,即仅改变通气角度其余仿真条件相同的条件下超空泡长度随着通气角度的增加而减小,超空泡最大直径变化与其相反。The supercavity is simulated by using the Navier-Stokes equations with standard k-ε turbulence model and modified Rayleigh-Plesset equations based on the hybrid mesh. In the scope with the angle of after body < the angle of ventilation α ≤ 90o, full cavitation model model is used and the variational rulers of the simulation is consistent with experimental. On the condition of changing the angle of ventilation, the length of supercavity is decrease with the angle of ventilation increasing, and the maximal diameter of the supercavity is increasing.

关 键 词：流体力学 数值模拟 三维 通气角 通气超空泡 

分 类 号：TV131.3+2[水利工程—水力学及河流动力学]