Abstract
ABSTRACT The reflection characteristics and the dynamic pressures exerted on an impermeable wall on the leeward side of permeable wave screens due to action of regular waves were taken up for investigation through theoretical and experimental programs. The two wave attenuating chambers are formed by placing horizontal slotted wave screens consisting of equally spaced circular wave-intercepting elements. The theoretical model is based on the eigenfunction expansion theory for linear waves, which has been successfully applied earlier for evaluating the hydrodynamic performance of vertical slotted screens by Issacson et al. (1998, 1999) and subsequently for pile supported barriers by Laju et al. (2006). The agreement between theoretical and experimental results is found to be good for the tested range of wave conditions. The present theoretical model is also found to be good in predicting the reflection characteristics of multi-chambered breakwaters. The formulation of theory, solution methodology, details of experiments and the results are discussed in this paper.
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