Air Flow Characteristics in a Hemispheric Head Cyclone Separator

Abstract

The purpose of this study is to investigate experimentally and numerically the characteristics of gas flow (single phase flow) in the hemispheric head cyclone separator without flowing particles and to find the flow characteristics contributing into high collection efficiency. It is shown that the numerical results calculated by RIKEN’s computational code and K computer are qualitatively agreement with the experimental results. The numerical results at Re = 2.3 × 10⁵ show the characteristics of the outer spiraling flow, the vortex rope formed at the central core, the longitudinal vortices surrounded the vortex rope, in the hemispherical head cyclone separator, comparing with a conventional flat head cyclone separator.