Hodaei, S.M.R., Chamani, M.R., N., Mogheam, M.N., Mansoorzadeh, S., and Kabiri-Samani, A. (2016), “Experimental study on reflection coefficient of curved perforated plate”, Journal of Marine Science and Application, Vol. 15, No. 4, pp. 382-387.


A set of experiments is carried out in a towing tank to study the effects of the curvature of perforated plates on the wave reflection coefficient (Cr). The curvature of a perforated plate can be changed by rotating a reference perforated plate about its origin point according to the parabolic equation y=−x2. A plunger-type wave maker is used to generate regular waves. The reflection coefficients are calculated using Goda and Suzuki’s (1976) method. The results are compared with those of vertical or sloped passive wave absorbers. The comparison shows that a perforated plate with a curved profile is highly efficient in terms of reducing the wave reflection coefficient. A correlation is established to estimate the reflection coefficient of curved perforated plates as a function of both flow and geometry characteristics.

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