航空学报 > 1996, Vol. 17 Issue (6): 91-94

球柱三维分离及涡流的数值模拟

阎超, 陈靓   

  1. 北京航空航天大学流体力学研究所, 北京, 100083
  • 收稿日期:1995-04-05 修回日期:1995-12-11 出版日期:1996-12-25 发布日期:1996-12-25

NUMERICAL SIMULATION OF THREE DIMENSIONAL SEPARATED AND VORTICAL FLOW OVER HEMISPHERE CYLINDER

Yan Chao, Chen Liang   

  1. Institute of Fluid Dynamics,Beijing University of Aeronautics and Astronautics,Beijing,100083
  • Received:1995-04-05 Revised:1995-12-11 Online:1996-12-25 Published:1996-12-25

摘要: 对三维可压非定常N-S方程进行有限体积中心离散,并用Runge-Kuta显式格式进行数值求解。数值模拟了球柱分离及涡流的形态结构,给出了具有激波、边界层、大分离区、涡流及其间相互干扰的复杂流型

关键词: 半球圆柱体, 数值流场显示, 分离流, 旋涡

Abstract: Viscous separated and vortical flow surrounding a hemisphere cylinder has been computed by numerical solution of three dimensional compressible unsteady N S equations using the finite volume method and Runge Kutta time stepping scheme.Results are presented for the complex flow field structures including shocks,boundary layer,separated flow,vortical flow and their mutual effects.

Key words: hemisphere cylinder bodies, numerical flow visualization separated flow, vortices

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