中文摘要：

科氏力对大尺度的河流、湖泊、海湾等水域影响是公认的事实，而对于小尺度流体运动过程中，目前研究者往往忽略其产生的作用。但是在小尺度旋转多相流中颗粒往往呈现向心运动的现象，这证明颗粒在旋转多相流存在相对速度并受到科氏力的作用。本文采用高速摄影机对试验过程中旋转两相流中颗粒的运动轨迹进行拍摄、记录，得到科氏力在小尺度旋转两相流中的作用：根据试验数据，可以准确的判定科氏力量值的大小，以及它和颗粒在小尺度两相流中其他受力之间的关系，得到科氏力在何种工况下对颗粒运动的影响是不可忽略的．并在颗粒运动中起主导力的作用。

英文摘要：

It is the generally recognized fact that Coriolis force has much influence on large-scale rivers, lakes and coastal areas, but the current studies on small-scale rotational two-phase flow always have ignored the effect of rotational Coriolis force. However, the particles in small-scale rotational multiphase flow often show centripetal movement, which proves that the particles in rotational multiphase flow have relative speed and are subjected to the Coriolis force. In this paper, the movement of the particles in rotational multiphase flow are photographically recorded and narrated by the high-speed camera, and finally the effect of rota- tional Coriolis force in small-scale rotational two-phase flow is got. According to the experimental data, the Coriolis force and the relation between it and other forces could be determined correctly. At the same time, the conclusion could also be got that under which conditions the coriolis force could not be ignored upon the particle movement, and under which conditions it could.