Experimental investigation on hydrodynamics of floating cylinder in oscillatory and steady flows by forced oscillation test

被引：32

作者：

Fu, Shixiao ^{[1
]}

Xu, Yuwang ^{[1
]}

Hu, Ke ^{[1
]}

Zhang, Yu ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200030, Peoples R China

来源：

MARINE STRUCTURES | 2013年 / 34卷

关键词：

Fish farming; Floating collar; Hydrodynamics; Experiments; Oscillatory current;

D O I：

10.1016/j.marstruc.2013.08.005

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

In this paper the hydrodynamic characteristics of a floating cylinder are investigated via forced oscillation experiments in towing tank. The effects of Keulegan-Carpenter number, Reynolds number, reduced velocity and overtopping on hydrodynamics of the floating cylinder in oscillatory and steady flow are studied. The results show a considerably difference of the hydrodynamic characters between the floating and the fully immerged cylinders due to the influences of free surface. The growth of the reduced velocity, a proven notable effect on hydrodynamics, will lead to the increase of added mass coefficient and the decrease of drag coefficient. Meanwhile the overtopping, a particular phenomenon for the floating cylinder, render the added mass coefficients reach up to 3.6 while for the drag coefficient small influences were made. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：41 / 55

页数：15

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