Numerical investigation of cavity dynamics and cavitation-induced vibrations of a flexible hydrofoil  

作　　者：Bin Xu Liwen Zhang Xingyu Liu Weibin Zhang Hao Wang Xi Shen Desheng Zhang B.P.M.(Bart)van Esch 

机构地区：[1]Research Center of Fluid Machinery Engineering and Technology,Jiangsu University,301 Xuefu Road,Zhenjiang 212013,Jiangsu,China [2]Key Laboratory of Fluid and Power Machinery(Xihua University),Ministry of Education,Chengdu 610039,Sichuan,China [3]College of Water Resources and Civil Engineering,China Agricultural University,Beijing 100083,China [4]Eindhoven University of Technology,P.O.Box 513,Eindhoven 5600MB,The Netherlands

出　　处：《International Journal of Fluid Engineering》2024年第4期30-43,共14页国际流体工程(英文)

基　　金：co-supported by the National Natural Science Foundation of China(Grant No.U2106225);the Open Research Subject of the Key Laboratory of Fluid and Power Machinery(Xihua University);Ministry of Education(Grant No.LTDL-2023003);the Outstanding Youth Foundation of Jiangsu Province of China(Grant No.BK20211547);the Excellent Scientific and Technological Innovation Team Project in Colleges and Universities of Jiangsu Province[Grant No.SKJ(2021)-1];the Natural Science Foundation of Jiangsu Province(Grant No.21KJA470002);the Senior Talent Foundation of Jiangsu University(Grant No.18JDG034);the National Science Fund for Distinguished Young Scholars of China(Grant No.52425903)

摘　　要：This work investigates the cavitation and fluid–structure interaction characteristics of a flexible NACA0015 hydrofoil.The simulation incorporates the Zwart–Gerber–Belamri cavitation model and two-way fluid–structure interactions.The detached eddy simulation method is employed to analyze the impact of cavitation and elastic deformation on hydrodynamic performance.The vibrational response and cavitating flow field around the hydrofoil are investigated.The results show that the vibrational mode of the elastic hydrofoil shifts with increasing flow speed.Furthermore,the vertical vibrational displacement of the hydrofoil aligns with the variations in cavitation volume in the flow field.The structural vibrational deformation of an elastic hydrofoil notably affects the evolution of cavitation.Additionally,fluid–structure interaction in the presence of cavitation influences the pattern of vortex shedding wakes in the flow field.The results of this study can serve as a reference for the design of hydrofoils constructed from composite elastic materials.

关 键 词：HYDROFOIL CAVITATION FLOW 

分 类 号：TK72[动力工程及工程热物理—流体机械及工程] TV136[水利工程—水力学及河流动力学]