摘要：分析了旋风分离器内颗粒运动阻力的特性，计算了某些工况下的颗粒雷诺数，进而分析说明了在旋风分离器内固体颗粒运动的的阻力不仅有粘性力的作用，而且有体形力的作用。

关键词：旋风分离器;颗粒运动;阻力;

Abstract：The characteristic of motion resistance of particles in cyclone separator are analysed and the Reynolds number of particles is calculated under the various working condition.It is suggested that the motion resistance of particles in cyclone separator is not only a viscous force, but also a body force.

Keyword：cyclone separator;particle motion; resistance;