【作者】 胡健； 王雅楠； 张维鹏；

【Author】 Hu Juan;Wang Yanan;Zhang Weipeng;School of ship engineering, Harbin engineering university;

【机构】 哈尔滨工程大学船舶工程学院；

【摘要】 纵倾是船用螺旋桨桨叶的重要几何参数,对螺旋桨空化有很大影响。为了研究纵倾对螺旋桨空化的影响,基于计算流体力学CFD(ComputationalFluidDynamics)软件Star-CCM+,对螺旋桨的敞水性能和空化现象进行了预报和分析。采用大涡模拟LES(LargeEddySimulations)方法和Schnerr-Sauer空化模型,通过参数变尺度研究,人为的改变螺旋桨桨叶的纵倾,分析螺旋桨桨叶空化情况。以减弱空化为优化目标,对有纵倾和无纵倾的桨进行梢涡空化现象的分析。通过计算结果表明纵倾对螺旋桨空化有一些影响。更多还原

【Abstract】 Pitch is an important geometric parameter of propeller blade, which has great influence on propeller cavitation.In order to study the influence of the trim on the propeller cavitation, based on computational fluid dynamics CFD software Star-CCM +, on propeller open water performance and cavitation phenomenon has carried on the forecast and analysis.The Large Eddy simulation LES, Eddy Simulations) method and Schnerr-Sauer cavitation model, through parameter variable scale research,human change propeller blade rake, analysis of propeller cavitation conditions.The phenomenon of tip vortex cavitation is analyzed for the propeller with and without longitudinal inclination.The results show that pitch has some effects on propeller cavitation.更多还原