Analysis of the wave dissipation characteristics and flow field of permeable breakwaters with inclined baffles

Abstract

To solve the problem of poor wave dissipation performance of traditional permeable breakwater, on the basis of the computational fluid dynamics method, numerical simulations are conducted on the hydrodynamic characteristics of permeable breakwaters with inclined plates by using the DUTFOAM model in OpenFOAM. The transmission, reflection, and energy dissipation characteristics of waves passing by an inclined plate are specifically analyzed, and the flow field distribution at the end of the inclined plate is given. Results show that, compared with the traditional vertical plate, the inclined plate has smaller transmission and reflection coefficients and a larger dissipation coefficient; a stronger vortex can be observed at the end of the inclined plate as the incline angle increases, which leads to a larger dissipation coefficient of the inclined plate. This condition is beneficial to improving the wave dissipation performance of the plate structure, thereby optimizing traditional permeable breakwater.