Effect of gap on the flow characteristics in the wake of a bluff body near a wall
作者: G. NasifR. BalachandarR.M. Barron
作者单位: 1University of Windsor, Ontario, Canada.
刊名: International Journal of Computational Methods and Experimental Measurements, 2019(4), pp.201-211
来源数据库: WIT Press
DOI: 10.2495/CMEM-V7-N4-201-211
关键词: Free surfaceNavier–Stokes equationNumerical simulationTurbulent modelsTwo-phase flowViscous flowWake flowWall jet
原始语种摘要: A numerical investigation is carried out to evaluate the influence of the gap between the bluff body and the bed on the wake characteristics generated in shallow flows. A sharp-edge bluff body with a fixed gap from the bed is employed in the study, and the results are compared with the no gap case. A sharp-edged bluff body was chosen to minimize the effect of Reynolds number and ensure fixed flow separation points. The transient three-dimensional Navier–Stokes equations are numerically solved using a finite volume approach with the detached eddy simulation turbulence model. The flow field in this study involves two different fluids, i.e. water and the air above it. The volume of fluid method is used for tracking the free surface separating the water and air. The fluid structures that are...
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关键词翻译
关键词翻译
  • bluff 欺骗
  • numerically 数字上
  • minimize 最小化
  • recovering 恢复
  • simulation 模拟
  • employed 就业
  • reveal 显露
  • investigation 研究
  • criterion 准则
  • Reynolds 雷诺