斜流下螺旋桨空泡及脉动压力数值预报研究  

Numerical Study of the Propeller Cavitation and Pressure Fluctuation in Oblique Flow

作　　者：郑巢生 刘登成[1,2,3] 张国平 周斌[1,2,3] 赵鹏礼 ZHENG haosheng;LIU Dengheng;ZHANG Guoping;ZHOU Bin;ZHAO Pengli(China Ship Scientific Research Center,Wuxi 214082,China;National Key Laboratory on Ship Vibration and Noise,Wuxi 214082,China;Taihu Laboratory of Deepsea Technological Science,Wuxi 214082,China;Shanghai Marine Propeller Design Co.,Ltd.,Shanghai 200011,China)

机构地区：[1]中国船舶科学研究中心,无锡214082 [2]船舶振动噪声重点实验室,无锡214082 [3]深海技术科学太湖实验室,无锡214082 [4]上海斯玛德大推船用螺旋桨设计公司,上海200011

出　　处：《中国造船》2023年第4期240-247,共8页Shipbuilding of China

摘　　要：空泡性能是船舶螺旋桨重要的水动力性能之一。由于桨轴存在倾斜安装角,船舶在水面航行时,螺旋桨的进流条件主要为斜流工况。为研究斜流工况下螺旋桨的空泡形态及空泡脉动压力特性,论文基于黏流CFD方法针对PC456螺旋桨标模开展了斜流下螺旋桨空泡及脉动压力数值模拟研究,并与大型空泡水筒中的斜流螺旋桨空泡试验结果进行了比较。结果表明,数值预报的空泡形态、面积和平板表面脉动压力与试验观测及测量的结果吻合较好,验证了数值模拟方法的可靠性。Propeller cavitation is one important aspect of hydrodynamic performance for marine propellers.The inlet flow is mainly oblique on account of the inclined mounting angle during the cruise.In order to study the characteristic of the propeller cavitation and pressure fluctuation,the unsteady propeller cavitation of the PC456 propeller benchmark model is numerically simulated and compared with the oblique cavitation experiment conducted in Large Cavitation Tunnel in CSSRC.The cavitation shape,cavitation area and the plate pressure fluctuation predicted show quite good agreement with the observations and measured data,which validate the reliability of the numerical simulation methods.

关 键 词：斜流 PC456螺旋桨 空泡 脉动压力 数值模拟 

分 类 号：U664.3[交通运输工程—船舶及航道工程]