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Multi-directional wave test basin |
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[Installed : March 1990] |
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| [Summary] |
 This
test basin is an experimental facility with 72 wave-generating plates (tank: 35
m long, 45 m wide, 1.1 m deep), the largest in Japan, which can generate waves
with the same property as offshore waves (multi-directional irregular wave). It
is used for the investigation of the design of various ocean facilities such as
surveying wave deformation, wave height, and flow in the vicinity of an artificial
island. |
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| [Objective] |
This test basin was established to promote the efficient,
wave-safe design of offshore structures and to carry out research on assessing
the effect of offshore structures on waves, flow, and sand movement in the surrounding
sea. It can reproduce not only wave heights and intervals of wave propagation
but also properties of waves traveling in various directions (multi-directional
irregular wave). For this purpose the wave generator has 72 wave generating plates
with a width of 40 cm, each of which is operated by a computer to generate the
intended wave. |
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| [Specification] |
Water tank : 35 m×45 m×depth 1.1 m
(Wave generator)
Type : Electric servo controlling piston type
Width of wave generator : 0.4 m
Height of wave generator : 1.2 m
Number of wave generating plates : 72
Total width of wage generating plate : 28.8 m
(Wave generating performance)
Wave height : Maximum 30 cm
Period : 0.5 to 4 seconds
Water depth : Maximum 80 cm
Wave type : multi-directional irregular wave, Unidirectional irregular wave, Regular
wave
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