关键词: 圆柱空腔流动, 涡破裂, 数值模拟, 有限控制容积法

Abstract: The comparison between the experimental visualizations by Escudier and Hide S.Koyama and numerical simulations of the development procedure of vortex breakdown in laminar swirling flow induced from a rotating endwall is presented. The experimental visualizations by Escudier were the first to reveal the presence of vortex breakdown phenomena in closed cylindrical container with a rotating lid. Afterwards, much experimental and numerical work was done in this research field. The accurate experimental measurements for the recurrence and development of vortex breakdown by Hide S.Koyama then make clear this phenomena. With numerical solution of unsteady axisymmetric Navier Stokes equations, the author accurately reproduces these phenomena. The numerical results are given and compared with experiments.

Key words: internal flow in cylindrical container, vortex breakdown, numerical simulation, finite control volume