A comparative study on wave attenuation performance of double-flat-plate and double-arc-plate breakwaters
To explore the similarities and differences of the wave attenuation performance between doub-le flat plate-type(DFPT)and double arc plate-type(DAPT)open breakwaters,a numerical model of the interactions between wave and plate type open breakwater based on the Navier-Stokes(N-S)equa-tions with the help of Fluent,and their correctness was validated by experimental results.The results showed that when D=-0.04 and 0 m,the transmitted wave energy of the DAPT open breakwater was smaller than that of the DFPT open breakwater,and the maximum percentage reduction was 71％for the 90％cases.When D=0.04 m,the transmitted wave energy of the DAPT open breakwater was lar-ger than that of the DFPT open breakwater,and the maximum increase was 82％.Under the various submergence conditions,reflected wave energy of the DAPT open breakwater was smaller than that of the DFPT open breakwater.Under the different submergence condition,the dissipated wave energy of the DAPT open breakwater was larger than that of the DFPT open breakwater,and the dissipated wave energy of the two open breakwaters increased as W/L increased.By comprehensively considering the transmitted,reflected and dissipated wave energy for the two types of open breakwaters,when placed at or above the still water surface,the DAPT open breakwater was found to exhibit higher wave dissi-pation performance than the DFPT open breakwater.In engineering practice,DAPT open breakwaters submerged at suitable depths could be selected based on the specific water conditions.
plate type open breakwaterwave attenuation performanceVOF methodN-S equation
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