摘要
本文介绍了由大连理工大学土木系海洋工程研究室研制的一种新型振荡流实验装置,它不但可以做振荡流实验,还可以做恒定流实验;在振荡流条件下,它可以达到比较大的KC数(=U_mT/D).本文首次运用这套实验装置,对深海中接近海底的水平管在振荡流作用下的受力进行了研究,分析了距海底不同高度的水平管力系数C_(FHrmS)和C_L值,得出了一些有意义的结论,并给出了力系数随参数KC和ξ值(=e/D)的变化曲线。
The facility inducing oscillating flow, developed by the Division of Ocean En- gineering,Dalicm University of Technology, is introduced in this paper. The paper describes the general arrangement of the facility, its main construction and power driver.with this facility, an experimental investigation has been carried out on forces induced by flow oscillating on submarine pipeline placed near the sea bottom. The in-line and transvers forces on the cylinder, which is placed at var- ious distances from the bottom of the water flume, are measured. Some interes- ins results are found. Finally, the curves of coefficients are given.
出处
《海洋技术》
1991年第2期1-10,共10页
Ocean Technology
