Abstract:The fluid-structure interaction(FSI)characteristics of cavitating flow around the hydrofoil were summarized from the aspects of experimental and numerical simulation. In the experimental research of cavitating flow around the hydrofoil, the invasive local probe measurement technology and the non-invasive full-field optical measurement technology were reviewed in detail, and the advantages and disadvantages of different measurement methods were pointed out. In addition, the related experimental research on unsteady cavitating flow around the hydrofoil was reviewed and discussed in detail from the aspects of cavitation form and flow field structure. In the numerical simulation of cavitating flow around the hydrofoil, the effects of different cavitation models and turbulence models on the simulation of the initiation, development and shedding process of the cavitation around the hydrofoil were as well summarized in detail. In the experimental research of fluid-structure interaction of cavitating flow around the hydrofoil, the relevant research was analyzed in detail from the measurement of the natural frequency, vibration characteristics, strain and structural displacement of the structure. It is pointed out that the trapping of cavities and the measurement of structural dynamic characteristic parameters are the key to the experimental study. In the numerical simulation of fluid-structure interaction of cavitating flow around the hydrofoil, the overall solution method and the step-by-step solution method are discussed in detail, and it is pointed out that the additional mass effect is an important concern for solving the problem. Finally, the prospect is presented from the aspects of multi-physics simultaneous observation and analysis, the interaction mechanism of cavitation-vortex-turbulence, fluid-structure coupling of cavitation around hydrofoils considering thermodynamic effects, as well as the establishment of cavitation models considering multi-physics scale changes. Future development directions of fluid-structure coupling in cavitation around hydrofoils.
许彬,王浩,沈熙,刘克洋,张德胜*. 绕水翼空化流固耦合特性研究现状与展望[J]. 排灌机械工程学报, 2023, 41(8): 809-817.
XU Bin,WANG Hao,SHEN Xi,LIU Keyang,ZHANG Desheng*. Current status and prospects of research on fluid-structure interaction characteristics of cavitating flow around hydrofoils. Journal of Drainage and Irrigation Machinery Engin, 2023, 41(8): 809-817.