简化伴流中螺旋桨空泡性能数值模拟方法  

Numerical Method on the Propeller Cavitation Performance in Simplified Wake Inflow

作　　者：翟树成[1] 马艳[1] 刘登成[1] 洪方文[1] ZHAI Shu-cheng;MA Yan;LIU Deng-cheng;HONG Fang-wen(National Key Laboratory on Ship Vibration&Noise,China Ship Scientific Research Center,Wuxi Jiangsu 214082,China)

机构地区：[1]中国船舶科学研究中心船舶振动噪声重点实验室,江苏无锡214082

出　　处：《船海工程》2022年第5期99-101,共3页Ship & Ocean Engineering

基　　金：国家自然科学基金(91852201)。

摘　　要：为实现船后螺旋桨空泡性能的快速预报,简化伴流,采用RANS数值模拟方法,结合SST k-ω湍流模型及基于Rayleigh-Plesset方程的空泡输运模型进行螺旋桨空泡性能数值模拟。提取船后标称伴流作为简化伴流方法的入流边界条件,获得空泡形态随桨叶旋转角度的变化特征及空泡诱导脉动压力特征,与船后螺旋桨空泡预报结果及试验结果进行对比分析,均能吻合较好,采用简化伴流方法开展螺旋桨空泡性能预报,可以快速可靠地获得船后螺旋桨空泡性能,提高螺旋桨空泡性能预报效率。In order to rapid predict the cavitation performance of propeller aft,a simplified wake method was used to simulate the cavitation shape of propeller blade and the hull pulsation pressure induced by cavitation.Combined with the SST k-ω turbulence model and the cavitation transport model based on Rayleigh-Plesset equation,the RANS simulation method was used to simulate the propeller cavitation performance.The inlet boundary conditions of the nominal wake after the ship as a simplified wake method were extracted,and the characteristics of the cavitation shape changing with the rotation angle of the blade and the characteristics of the cavitation induced fluctuation pressure were obtained,which were in good agreement with the prediction results of the cavitation of the propeller after the ship and the experimental results.The simplified wake method can be used to predict propeller cavitation performance quickly and reliably,and the prediction efficiency of propeller cavitation performance can be improved.

关 键 词：螺旋桨 空泡 脉动压力 RANS方法 

分 类 号：U661.31[交通运输工程—船舶及航道工程]