水力空化

研究方向

用于稳态和非稳态CFD模拟的空化模型
无源空化控制器的实验和数值优化

专案

液压中的气穴现象是性能预测中应考虑的重要现象。需要研究对空化的发生和发展及其对流场的影响，同时减小压力水平的正确分析。特别要注意的是空化模型和湍流模型之间的耦合以及潜在的数值过程。在稳定情况下，将首先在简单情况下评估所提出模型的性能。在第二步中，将针对不同的应用提供倾斜箔。该项目的最终目的是在水翼上设计一个无源控制器，以减小和控制水翼周围空化气泡的大小以及与剪切空化有关的升力振荡。为此，将考虑附件和涡流发生器。尺寸，高度和位置将被考虑以优化气穴现象和减少升力之间的折衷。将结果与稳定和节距水翼的实验日期进行比较。

Attracting Lagrangian Coherent Structures ALCSs

Repelling Lagrangian Coherent Structures RLCSc

工具

设施 – 空化设备

网格工具 – ICEM 和 Salome

CFD 工具 – ANSYS CFX 和 OpenFOAM

后处理工具 – VTK, Paraview, Matlab 和 Python

刊物

Tingyun Yin, Giorgio Pavesi, and Shouqi Yuan. Influences of bio-inspired leading-edge tubercle on cloud cavitation around NACA 0009 hydrofoil. The 15th European Turbomachinery Conference (ETC15) Turbomachinery, Fluid Dynamics and Thermodynamics, 24-28 April 2023, Budapest, Hungary
Tingyun Yin, Giorgio Pavesi, and Shouqi Yuan (2023)Revisiting RANS prediction of transitional flow on T3A flat plate subject to various freestream turbulences. Computers & Fluids, 30 March 2023, 254: 105810, DOI: 10.1016/j.compfluid.2023.105810
Tingyun Yin, Giorgio Pavesi, Ji Pei, and Shouqi Yuan (2022)Numerical investigation on the inhibition mechanisms of unsteady cavitating flow around stepped hydrofoils. Ocean Engineering, 1 December 2022, 265: 112540, DOI: 10.1016/j.oceaneng.2022.112540
Tingyun Yin, Giorgio Pavesi, Ji Pei, Shouqi Yuan, and Xingcheng Gan. (2022) Large eddy simulation investigation of cloud cavitation and wake vortex cavitation around a trailing-truncated hydrofoil. Journal of Hydrodynamics, 14 November 2022, 34(5): 893-903, DOI: 10.1007/s42241-022-0073-9
Tingyun Yin, and Giorgio Pavesi (2022) Dynamic responses of pitching hydrofoil in laminar-turbulent transition regime. Journal of Fluids and Structures, May 2022, 111: 103544, DOI: 10.1016/j.jfluidstructs.2022.103544
Tingyun Yin, Giorgio Pavesi, Giovanna Cavazzini, Ji Pei, and Shouqi Yuan (2021) Numerical investigations of laminar-turbulent transition on two hydrofoils using OpenFOAM. The 16th Asian International Conference on Fluid Machinery (ICFM16), 13-15 September 2021, Yokohama, Japan.
Tingyun Yin, Giorgio Pavesi, Ji Pei, and Shouqi Yuan (2021)Numerical analysis of unsteady cloud cavitating flow around a 3D Clark-Y hydrofoil considering end-wall effects. Ocean Engineering, 1 January 2021, 219: 108369, DOI: 10.1016/j.oceaneng.2020.108369
Tingyun Yin, Giorgio Pavesi, Ji Pei, Shouqi Yuan, Giovanna Cavazzini, Guido Ardizzon (2021) Lagrangian Analysis of Unsteady Partial Cavitating Flow Around a Three-Dimensional Hydrofoil, Journal of Fluids Engineering 143(4 – April), p. 1-11, doi:10.1115/1.4049242
Tingyun Yin, Giorgio Pavesi, Ji Pei, Shouqi Yuan (2021) Numerical investigation of unsteady cavitation around a twisted hydrofoil, International Journal of Multiphase Flow 135, p. 103506, Elsevier Ltd, url, doi:10.1016/j.ijmultiphaseflow.2020.103506
Tingyun Yin, Giorgio Pavesi, Giovanna Cavazzini, Ji Pei, and Shouqi Yuan. Numerical investigation of unsteady cavitating flow around 3D hydrofoils[C]. SHF/AFM Conference on Hydraulic Machines and Cavitation At: School of Engineering of the HES-SO Valais-Wallis in Sion (Valais), 6-7 November 2019, Sion, Swiss
Tingyun Yin, Giorgio Pavesi, Ji Pei, et al.(2018) Comparison of Various Turbulence Models Applied to a Twisted Hydrofoil. Proceedings of the 10th International Symposium on Cavitation (CAV2018). United States. ASME Press, 2018. DOI: 10.1115/1.861851_ch52.