IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 2: Coastal Hydraulics: Form and Function : Restraint technique over the movement of floating aquaculture facilities
Restraint technique over the movement of floating aquaculture facilities
Author : Y. Matsuuchi, M. Aminaka, M. Tochino, M. Miyagawa and Y. Suenaga
In the case of rearing valuable rockfish juveniles that have hiding behavior in the floating aquaculture facilities, a number of juveniles decreases due to the stress from structure movement of floating facilities caused by the irregular and continuous ocean waves. In terms of restraint of floating facilities, some methods over reducing structural movement have been developed and attempted. However, the existing methods require a large amount of cost and effort. Now, more effective technology is required for reducing structural movement. We developed one method that can reduce structural movement by absorbing wave energy. The principle is that the natural frequency of the oscillating water column is determined not by its volume but by its length. We conducted the water tank experiment on absorbing the wave energy and adjusted the length of the oscillating water column to natural frequency of incoming wave. Furthermore, we examined the restraint function of this method in the real sea area in this study.
File Size : 458,658 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 2: Coastal Hydraulics: Form and Function
Date Published : 01/07/2011
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