Panduranga Kottala
Santanu Koley
Abstract
The study deals with the interaction of water waves with the perforated thin barrier placed in front of a rigid wall in the presence of step bottom. To include the effect of wave heights on the wave energy dissipation, a nonlinear pressure drop condition on the perforated barrier is considered. Further, the associated boundary value problem is solved numerically using the iterative boundary element method. Finally, the reflection coefficient and wave forces are evaluated and analyzed to study the various characteristics of the trapping problem. The study concludes that the wave forces on the rigid breakwater reduce significantly with an increase in the porosity of the perforated thin barrier.
Keywords
Perforated barrier; Quadratic pressure drop; Iterative boundary element method; Reflection coefficient; Wave force
