An Experimental Study of Surface Buoy Profiles to Improve the Accuracy of Seafloor Crustal Deformation and Tsunami Signal Observations of the On-Demand Buoy System
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Published:2018-05-01
Issue:3
Volume:52
Page:91-99
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ISSN:0025-3324
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Container-title:Marine Technology Society Journal
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language:en
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Short-container-title:mar technol soc j
Author:
Imai Kentaro,Fukuda Tatsuya,Ishihara Yasuhisa,Takahashi Narumi
Abstract
AbstractA hydraulic experiment was carried out to determine the optimal profile of surface buoys of the on-demand buoy system for observing seafloor crustal deformation and tsunami signals. The experiment used a rectangular flume with surface buoy models, and the surface
buoy profile was changed by analogy with the profile of a tree crown that has been deformed by a stream. Then, the fluid force acting on the surface buoy was measured with a force transducer, and its drag coefficient was evaluated. The results showed that, for observation accuracy, a buoyancy
unit with a 2D droplet profile and a lower structure with a 3D droplet profile were optimal.
Publisher
Marine Technology Society
Subject
Ocean Engineering,Oceanography
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