变攻角圆盘空化器生成自然超空泡数值模拟  

Numerical Simulation on Natural Supercavity Based on Disk-Cavitator with Variable Attack Angle

作　　者：黄海龙[1] 王聪[1] 黄文虎[1] 赵存宝[1] 周峰[2] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001 [2]哈尔滨工业大学能源学院,黑龙江哈尔滨150001

出　　处：《北京理工大学学报》2008年第2期100-103,共4页Transactions of Beijing Institute of Technology

基　　金：黑龙江省自然科学基金重点项目(ZJG03-1)

摘　　要：基于结构化网格,运用N-S方程及k-ε湍流模型对均质流场求解,引入Rayleigh-Plesset方程模拟超空泡问题.对三维圆盘空化器在不同空化数情况下进行超空化流动数值模拟.将三维无攻角圆盘空化器的仿真结果与经验公式进行对比,二者具有良好的一致性.并且解决了带攻角圆盘空化器生成超空泡的数值模拟问题,详细分析了不同攻角圆盘空化器生成自然超空泡的形态特征以及升阻力特性.Supercavity is simulated using the Navier-Stikes equations with standard k-ε turbulence model and modified Rayleigh-Plesset equations based on the structured mesh. Research shows that the simulation result of full three dimensional disk-cavitator is consistent with the empirical formulas. The problem of numerical simulation on supercavity induced by disk-cavitator with attack angle is solved. The shape, lift and drag characteristics of supercavity induced by disk-cavitator with attack angle are analyzed in detail. The best of attack angle disk-cavitator with attack angle are summarized.

关 键 词：超空泡 空化器 数值模拟 攻角 阻力系数 

分 类 号：TV131.3[水利工程—水力学及河流动力学]