基于分块结构网格的泵喷推进器敞水性能模拟  

Simulation of Open Performance of Pumpjet Propeller Based on Block Structured Mesh

作　　者：张凯[1] 叶金铭[1] 于安斌 ZHANG Kai;YE Jinming;YU Anbin(Department of Naval Architecture Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学舰船与海洋学院,武汉430033

出　　处：《船舶工程》2018年第11期49-54,共6页Ship Engineering

基　　金：国家自然科学基金(51579243)

摘　　要：为准确预报泵喷推进器的敞水性能,采用分块高质量结构化网格,结合SST k-ω模型对模型泵喷推进器进行数值模拟。结果表明:采用该数值方法所得计算值与试验值具有较好的一致性;进行泵喷推进器敞水性能模拟时,进口距转子域的最佳长度为3倍转子直径;泵喷推进器的前置定子有利于降低辐射线谱噪声和提高推进效率;较大的导管攻角有利于降低泵喷推进器的辐射线谱噪声。In order to predict the open performance of pumpjet propeller,a numerical simulation of model pumpjet propeller is carried out using high qualio,block structured mesh and SST K-w turbulence model.The results show that the calculated value of this numerical method keeps consistent with the experimental value.The best inlet length away from the rotor domain is 3 times of the rotor diameter while performing the open performance of pumpjet propeller,"the front stator of pumpjet propeller helps to reduce the radiation line-spectrum noise and promote the propulsive efficiency;designing the relatively big angle of attack of duct helps to reduce the radiation line-spectrum noise of pumpjet propeller.

关 键 词：泵喷推进器 敞水性能 结构化网格 进口长度 前置定子 导管 

分 类 号：U661.1[交通运输工程—船舶及航道工程]