毂帽鳍参数变化对新型低噪声耦合桨增效影响的数值分析  

Numerical analysis of the effect of the propeller boss cap fins parameter change on the energy conservation of a new type of low-noise coupling propeller

作　　者：李亮[1,2] 刘登成 韩用波[1,2] 许影博 LI Liang;LIU Dengcheng;HAN Yongbo;XU Yingbo(National Key Laboratory on Ship Vibration&Noise,China Ship Scientific Research Center,Wuxi 214082,China;Jiangsu Key Laboratory of Green Ship Technology,Wuxi 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 [2]江苏省绿色船舶技术重点实验室,江苏无锡214082

出　　处：《哈尔滨工程大学学报》2021年第1期15-20,88,共7页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51706211);江苏省自然科学基金项目(BK20170215).

摘　　要：毂帽鳍设计参数选取的不同会影响螺旋桨尾流的回收利用程度,从而影响毂帽鳍的节能、消涡效果。针对低噪声多叶耦合螺旋桨这种新构型,本文采用CFD数值方法,分析了鳍叶叶数、周向安装角度和鳍叶直径比对毂帽鳍流场和节能效果的影响,研究结果表明:耦合桨虽然由前后2组桨叶错开布置,但在毂帽鳍叶数选取时,仍需以2组桨叶叶数之和作为参考;不同叶数的周向最佳安装角叶略有不同;本耦合桨在鳍叶直径比为0.41时,毂帽鳍增效最高,与常规桨相比耦合桨鳍叶最佳直径比相对偏大。本文结果可为耦合桨毂帽鳍设计时主参数的选取提供指导和依据。The selection of different design parameters of propeller boss cap fins(PBCF)affects the recycling of propeller wake flow,thereby affecting energy conservation and boss vortex elimination of the PBCF.The computational fluid dynamics numerical method was adopted to analyze the effects of the number,circumferential installation angle,and diameter ratio of the fin blade on the wake flow and energy conservation of the PBCF of a new type of low-noise coupling propeller.The research results show that although the front and rear blades of the coupling propeller are staggered,the sum of the number of two blade groups should be taken as the reference when the fin blade number is chosen.The optimum circumferential installation angle is slightly different when the fin blade number is different.The highest energy conservation of the current coupling propeller′s PBCF occurs when the diameter ratio of the fin blade is 0.41.It seems that the optimum diameter ratio of the coupling propeller′s PBCF is greater than that of a normal propeller.The current research results can provide reference and guidance for the selection of the main design parameters of coupling propellers′PBCF.

关 键 词：毂帽鳍 耦合桨 CFD 节能增效 毂涡 周向安装角 水动力 低噪声 

分 类 号：U661.31[交通运输工程—船舶及航道工程]