摘要
对于上端盖旋转圆柱空腔内旋转流动来说，当流动达到一定条件时，就会出现旋涡破裂现象。目前针对这种现象已经进行了大量的稳态和非稳态实验测量，获得了精确的实验数据。采用数值模拟方法，重现了涡破裂现象及其发生发展过程。
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.
出处
《计算物理》
CSCD
北大核心
1999年第6期656-660,共5页
Chinese Journal of Computational Physics
关键词
圆柱空腔流动
涡破裂
数值模拟
有限控制容积法
internal flow in cylindrical container
vortex breakdown
numerical simulation
finite control volume.
