中文摘要：

通过对水平螺旋管道内单颗粒运动进行试验,采用高速摄影方法拍摄记录管道内颗粒的运动,捕捉颗粒运动轨迹,获得其运动参数,并采用单颗粒动力学模型对其受旋转科氏力特性进行了分析,结果表明：颗粒主要受到离心力和旋转科氏力的作用;无量纲量λ与ζ存在明显的指数关系;颗粒所受旋转科氏力不能忽略样本数约实测总数的3/4。因此,在小尺度低速度旋转流下研究颗粒受力时,颗粒所受的旋转科氏力不应被忽略。

英文摘要：

The force upon a single particle in horizontal spiral rectangular duct are analysed based on the movement parameters of particle obtined by high-speed camera in the experimental research and kinetic model of single granula.The results indicate that the centrifugal force and rotational Coriolis force are the main force upon it;in some conditions,there is exponential relation between the dimensionless quantity λ and ζ.The sample numbers of rotational Coriolis force which could not be ignored are about three-quarters of the total.Therefore,the rotational Coriolis force should not be ignored in force analyzing of a particle under the small-scale and rotational flow with low velocity.