带小圆管圆柱振荡流中流体动力系数试验研究

Experimental Study on Fluid Dynamic Coefficients of Circular Cylinders with Small Tubes in Oscillating Flow

本试验利用摆动装置进行了带小圆管圆柱的流体动力系数的测量研究。首先用光体圆柱作为校核模型进行试验 ,将结果与已有资料进行比较 ,以确定试验方法可行。然后对圆柱带一根、二根和三根小圆管进行了系列测量试验 ,得到了一批数据 。

A pendulous device is used to simulate oscillating flow. The flnid dynamic coefficients of circular cylinders with small tubes are measured in the flow. The C D and C m of a single smooth circular cylinder, which is taken as the checking model, are measured and compared with the data in references to verify the test method. Systemic measurement for circular cylinders with one, two or three tubes are carried out. valued data are obtained, which may be refered to in the design of ocean mining equipment.