Abstract
This chapter summarizes some of the most recent work available on the modeling of wave interaction with porous structures. It is shown that the study of wave interaction with permeable structures evolved in parallel with wave theories in fluids. Models based on linear wave theory, modified Boussinesq equations or other kinds of shallow water equations and RANS equations are currently available. For any of these models the accuracy of the final results relies greatly on some parameters depending on the flow. Structure permeability modifies the flow in the nearby area, therefore having important consequences on scour and shoreline morphodynamics. Special attention is paid to the effects of wave transmission and combined diffraction-transmission leeward the structures, as well as the influence of structure permeability on wave breaking. The validity of current porous flow models for rigid porous media with macroscopic pores, such as artificial block layers in rubble mound structures, is analyzed. The extension of the Cornell breaking wave and structure (COBRAS) to three-dimensions implies a considerable improvement to the current modeling of wave and permeable structure interaction.
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