Correlation analysis between underwater noise and Liutex for DTMB4119 propeller

作     者：Lian-jie Yu Jian-wei Wu De-cheng Wan Lian-jie Yu;Jian-wei Wu;De-cheng Wan

作者机构：Computational Marine Hydrodynamics Lab(CMHL)School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China Wuhan Second Ship Design and Research InstituteWuhan 430205China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2022年第34卷第4期

页      面：585-595页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Key Researchand Development Program of China(Grant No.2019YFB1704200) the National Natural Science Foundation of China(Grant Nos.51909160,52131102 and 51879159) 

主　　题：Third-generation vortex DTMB4119 propeller cavitation FW-H formulation 

摘      要：Propeller is an important equipment of ocean *** has characteristics of complex geometry and periodic vortex shed,which means high research *** paper takes DTMB419 propeller as the research object.A detailed study is conducted on the wake vortices in non-cavitation state and cavitation *** vortex identification methods are used to compare the vortices capture effects from downstream sections and three-dimensional *** results show that,the third-generation vortex identification technologyΩ_(R)shows obvious *** the same time,FW-H equation is used to predict propeller noise,and the relationship between nonlinear sound source distribution and vortices distribution is *** is found that the distribution of Lighthill tensor is consistent withΩ_(R),which proves the advantages and potential of third-generation vortex identification technology from acoustic perspective.