Implicit large eddy simulation of unsteady cloud cavitation around a plane- convex hydrofoil
  • 【DOI】

    10.1016/S1001-6058(15)60544-3

  • 【摘要】

    The present paper focuses on the erosive cavitation behavior around a plane convex hydrofoil. The Zwart-Gerber-Belamri cavitation model is implemented in a library form to be used with the OpenFOAM. T... 展开>>The present paper focuses on the erosive cavitation behavior around a plane convex hydrofoil. The Zwart-Gerber-Belamri cavitation model is implemented in a library form to be used with the OpenFOAM. The implicit large eddy simulation (ILES) is app- lied to analyze the three dimensional unsteady cavitating flow around a plane convex hydrofoil. The numerical results in the cases under the hydrodynamic-conditions, which were experimentally tested at the high speed cavitation tunnel of the école Polytechnique Fédérale de Lausanne (EPFL), clearly show the sheet cavitation development, the shedding and the collapse of vapor clouds. It is noted that the cavitation evolutions including the maximum vapor length, the detachment and the oscillation frequency, are captured fairly well. Furthermore, the pressure pulses due to the cavitation development as well as the complex vortex structures are reasona- bly well predicted. Consequently, it may be concluded that the present numerical method can be used to investigate the unsteady cavitation around hydrofoils with a satisfactory accuracy. 收起<<

  • 【作者】

    罗先武  季斌  ESCALER Xavier  JI Bin  AGUINAGA Alvaro 

  • 【作者单位】

    CDIF/School of Power and Mechanical Engineering/Mechanical Engineering Department

  • 【刊期】

    水动力学研究与进展B辑 ISTIC EI 2015年6期

  • 【关键词】

    implicit large eddy simulation (ILES)  unsteady partial cavitation  Zwart-Gerber-Belamri cavitation model  OpenFOAM  Q-criterion 

  • 【基金项目】

    the National Natural Science Foun- dation of China