关于离心试验中流体运动时间比尺的探讨

he principle of the soil centrifuge test is expounded briefly. As the time scale ratio of the traditional centrifuge test to simulate the action between the liquid and the grains is unseemliness, the similarity criterion about hydrokinematics is violated between model and plototype. So, the research of this paper is to proceed from this angle， by rectifying the fluid parameters，On the premise of consistent between inertia time ratio and fluid time scale ratio, the similarity of fluid is guaranteed. The similarity between Centrifugal Model Test and practical engineering is very good. At last,numerical simulation results are presented to illustrate the theoretical analysis。