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EFFECTS OF WATER-DEPTH ON HYDRODYNAMIC FORCE OF ARTIFICIAL REEF

ISSN:1001-6058
2007年第19卷第3期
MIAO Zhen-qing XIE Yong-he MIAO Zhen-qing,XIE Yong-he
MIAO Zhen-qing College of Environmental Science and Engineering,Ocean University of China,Qingdao 266003,China School of Naval Architecture and Civil Engineering,Zhejiang Ocean University,Zhoushan 316004,China,XIE Yong-he School of Naval Architecture and Civil Engineering,Zhejiang Ocean University,Zhoushan 316004,China 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, China;2. School of Naval Architecture and Civil Engineering, Zhejiang Ocean University, Zhoushan 316004, China;1. Department of Ocean Engineering, Pukyong National University, Busan 608-737, Republic of Korea;2. Research Center for Ocean Industrial Development, Pukyong National University, Busan 608-737, Republic of Korea;1. Department of Power Vehicle and Systems Engineering, Chung Cheng Institute of Technology, National Defense University, Dashi, Taoyuan 335, Taiwan;2. Department of Shipping Technology, National Kaohsiung Marine University, Kaohsiung 800, Taiwan;1. Fishery College, Ocean University of China, Qingdao, 266003, China;2. National Engineering Research Center for Oceanic Fisheries, Shanghai, 201306, China;3. College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China;4. Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Shanghai Ocean University, Ministry of Education, Shanghai, 201306, China;1. Centre of Biosciences and Biotechnology, University of North Rio de Janeiro State, Campos, RJ 28013-602, Brazil;2. Department of Ecology and Marine Resources, Federal University of Rio de Janeiro State, Rio de Janeiro, RJ 22061-010, Brazil

The effects of water-depth on the hydrodynamic force of the artificial reef were studied by simulating regular and irregular waves. The computational results show that the water-depth has a substantial effect on hydrodynamic force. The hydrodynamic force increases with the decrease of water-depth in shallow. Especially, in the ultra-shallow water these loads increase very evidently with the decrease of water-depth. The long-term values of hydrodynamic force increase with the decrease of the ratio of water-depth to reef height, and are about 10% larger than those of deep water when the ratio of water-depth to reef height is 4.0. However water-depth hardly affects the long term values of hydrodynamic force when the ratio of water-depth to reef height is larger than 6.0.


The effects of water-depth on the hydrodynamic force of the artificial reef were studied by simulating regular and irregular waves. The computational results show that the water-depth has a substantial effect on hydrodynamic force. The hydrodynamic force increases with the decrease of water-depth in shallow. Especially, in the ultra-shallow water these loads increase very evidently with the decrease of water-depth. The long-term values of hydrodynamic force increase with the decrease of the ratio of water-depth to reef height, and are about 10% larger than those of deep water when the ratio of water-depth to reef height is 4.0. However water-depth hardly affects the long term values of hydrodynamic force when the ratio of water-depth to reef height is larger than 6.0.

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ISSN:1001-6058
2007年第19卷第3期

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