轴对称体的局部空泡流研究  

Study on Partially Cavitating Flow of an Axisymmetric Body

作　　者：冷海军[1] 鲁传敬[1] 

机构地区：[1]上海交通大学工程力学系,上海200030

出　　处：《上海交通大学学报》2002年第3期395-398,共4页Journal of Shanghai Jiaotong University

摘　　要：在流体为无粘不可压和流动有势的假定下 ,研究了轴对称体的定常局部空泡流 .空泡尾流采用压力恢复模型 ,应用高阶有限元离散的边界积分方程方法 ,求解给定空泡数下的解 .探讨了空泡形状与空泡数的关系 ,以及尾流模型参数对结果的影响 .A steady flow round a partially cavitating axisymmetric body was studied under the assumption that the fluid is inviscid and incompressible and the flow is potential. A pressure recovery model was adopted to represent the cavity wake. The problem of given cavitation number was solved by use of the boundary integral equation method and the high order finite element discretization. The relation of cavity length and cavity number, and the effect of cavity closure model parameters on the flow were discussed. The numerical results of a typical example are in good agreement with other numerical simulation and experimental data.

关 键 词：轴对称体 局部空泡流 边界积分方程 

分 类 号：TV131.32[水利工程—水力学及河流动力学]