Experimental study on the performance of twin plate breakwater |
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| Authors: | Chuan-sheng Guo Ning-chuan Zhang Yan-yang Li Jing-bo Li Zhuo Fang Cheng Cui |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | The wave transmission characteristics and wave induced pressures on twin plate breakwater are investigated experimentally
in regular and random waves. A total of twenty pressure transducers are fixed on four surfaces of twin plate to measure the
wave induced dynamic pressures. The spatial distribution of dynamic wave pressure is given along the surface of the twin plate.
The uplift wave force obtained by integrating the hydrodynamic pressure along the structure is presented. Discussed are the
influence of different incident wave parameters including the relative plate width B/L, relative wave height H
i
/a and relative submergence depth s/a on the non-dimensional dynamic wave pressures and total wave forces. From the investigation, it is found that the optimum
transmission coefficient, K
t
occurs around B/L = 0.41∼0.43, and the twin plate breakwater is more effective in different water depths. The maximum of pressure ratio decreases
from 1.8 to 1.1 when the relative submergence depth of top plate is increased from −0.8 to +0.8. |
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| Keywords: | twin plate wave pressure vertical wave force relative submergence transmission coefficient |
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