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- Title
Experimental Investigation on Hydrodynamics of a Fish Cage Floater-net System in Oscillatory and Steady Flows by Forced Oscillation Tests.
- Authors
Shixiao Fu; Yuwang Xu; Ke Hu; Qian Zhong; Runpei Li
- Abstract
In this article, the hydrodynamic characteristics of a floater-net system in oscillatory and steady flows are investigated through forced oscillation experiments in a towing tank. The effects of Keulegan-Carpenter number, Reynolds number, and reduced velocity are studied. Also, hydrodynamic forces on the floater and net are compared in detail to analyze their respective contributions to the total drag force. The results indicate that in oscillatory flow, the added mass coefficient of the floater is larger than that of the floaternet system, whereas the drag coefficient is smaller. The proportion of the drag force exerted on the floating cylinder reaches its maximum in oscillatory flow and its minimum in steady current flow. In addition, the reduced velocity has a very clear influence on the hydrodynamic performance of the floater-net system; specifically, the drag coefficient in oscillatory flow becomes smaller as reduced velocity increases.
- Subjects
HYDRODYNAMICS; UNSTEADY flow; STEADY-state flow; TOWING basins; REYNOLDS number; MEASUREMENT of flow velocity
- Publication
Journal of Ship Research, 2014, Vol 58, Issue 1, p20
- ISSN
0022-4502
- Publication type
Article
- DOI
10.5957/JOSR.58.1.130022