摘要
采用数值模拟方法,对高速航行体垂直发射上升过程重力场中的通气空泡流进行了研究.基于Mixture多相流模型和耦合自然空化模型,建立气、汽、液多相空泡流数学模型,求解整个流场域内的Reynolds平均Navier-Stokes方程.使用动网格技术(Dynamic Mesh Method)结合用户自定义函数(UDF)的程序,数值模拟了重力影响下高速航行体垂直发射水下运动过程,揭示了通气空泡的演化规律及流动载荷变化特征.
The ventilated cavitating flow in a longitudinal gravity force field was studied by using numerical simulation method during vertical launch submarine missile rising.Based on the Mixture multiphase model and coupled with the natural cavitation model,the Reynolds-averaged Navier-Stokes equations were solved and the mathematical model of multiphase cavitating flow of gas,vapor and water was established.A dynamic mesh technique was utilized,combined with UDF program,the underwater motion process of a submarine vertically launched missile was simulated,and the evolution of the ventilated cavity and the effect of the partial cavity on the hydrodynamics were achieved.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2012年第2期329-334,共6页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金(10832007
11002089)资助项目
上海市重点学科(B206)资助项目
关键词
通气空泡
多相流
动网格
垂直发射
ventilated cavity
multiphase flow
dynamic mesh
vertical launch