BEHAVIOR OF FISH REEF BLOCKS FALLING THROUGH WATER

Jun Mitsui; Shin-ichi Ogata; Sanae Shibata; Akira Matsumoto; Masato Yamamoto

doi:10.9753/icce.v33.management.38

No. 33 (2012), Coastal Management, Environment, and Risk

No. 33 (2012)

BEHAVIOR OF FISH REEF BLOCKS FALLING THROUGH WATER

Coastal Management, Environment, and Risk

https://doi.org/10.9753/icce.v33.management.38

Published 2012-09-28

Jun Mitsui⁺⁻
Shin-ichi Ogata⁺⁻
Sanae Shibata⁺⁻
Akira Matsumoto⁺⁻
Masato Yamamoto⁺⁻

Jun Mitsui

Fudo Tetra Corporation

Shin-ichi Ogata

Fudo Tetra Corporation

Sanae Shibata

Fudo Tetra Corporation

Akira Matsumoto

Fudo Tetra Corporation

Masato Yamamoto

Tripole Co.,Ltd.

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Keywords

fish reef block
snow crab
falling behavior
deep sea area
hydrodynamic force coefficient
OpenFOAM

How to Cite

Mitsui, J., Ogata, S.- ichi, Shibata, S., Matsumoto, A., & Yamamoto, M. (2012). BEHAVIOR OF FISH REEF BLOCKS FALLING THROUGH WATER. Coastal Engineering Proceedings, 1(33), management.38. https://doi.org/10.9753/icce.v33.management.38

Abstract

An accurate and economical placement method for fish reef blocks utilizing free fall in the deep sea area is presented in this paper. Falling behavior of concrete blocks in water was investigated by hydraulic model experiments and 3-D numerical computations. As a result, a new fish reef block which falls through water with highly stable behavior was developed. The distribution range of the developed block on the sea bottom was predicted by a stochastic model and it was proved to be sufficiently narrow. In addition, a quick estimation method for the placement position was developed to determine the release point of the block in actual construction. By using hydrodynamic force coefficients to evaluate the forces acting on the block, the method can estimate the falling behavior of the block in a flow field with sufficient accuracy and in a short time.

https://doi.org/10.9753/icce.v33.management.38

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References

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Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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BEHAVIOR OF FISH REEF BLOCKS FALLING THROUGH WATER

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