E779A螺旋桨斜流工况下的空泡数值模拟  

Numerical Simulation of Cavitation on E779A Propeller in Oblique Flow

作　　者：赵旻晟 赵伟文 万德成[1] ZHAO Minsheng;ZHAO Weiwen;WAN Decheng(State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai 200240,China)

机构地区：[1]上海交通大学船海计算水动力学研究中心(CMHL)船舶海洋与建筑工程学院,上海200240

出　　处：《中国造船》2021年第3期94-102,共9页Shipbuilding of China

基　　金：国家重点研发计划项目(2019YFB1704200,2019YFC0312400);国家自然科学基金项目(51879159)。

摘　　要：基于开源CFD软件平台OpenFOAM,对E779A螺旋桨在斜流工况下的水动力特性及桨叶上的非定常空化进行模拟分析。分析螺旋桨在非定常空化流中的水动力性能,包括推力系数、桨叶表面压力分布及空泡形态。计算结果表明斜流会对螺旋桨水动力造成干扰,这一影响在来流与螺旋桨首尾线的夹角变大时会增强。对比有无空化发生时的压力分布,表明空化会抑制叶背压力下降,减小螺旋桨桨叶两面的压力差,从而降低螺旋桨的推力。Based on the open source CFD software platform OpenFoam,unsteady cavitation and hydrodynamic performance of the E779A propeller in oblique flow were simulated and analyzed.Hydrodynamic performance of the propeller in unsteady cavitation flow is studied,including thrust coefficient,pressure distribution on the blade surface and cavitation shape.Calculation results show that the oblique flow condition will disturb the propeller performance,and this effect will be strengthened by increasing the angle between the inflow and the propeller head-tail line.Cavitation can inhibit the pressure drop at the suction side of the blade,reduce the pressure difference between two sides of the blade,so as to reduce the thrust of the propeller.

关 键 词：OPENFOAM E779A螺旋桨 斜流 非定常空泡 

分 类 号：U661.313[交通运输工程—船舶及航道工程]