Abstract: Based on the k-ε turbulence model, a numerical wave flume was established to develop a pervious wave-absorbing device with multiple porous plates using CFD software STAR-CCM+. The volume of fluid (VOF) method was used to track the free surface and the wave was generated with the module of VOF WAVE with the wave-damping zone placed at the end of the flume. The results of regular waves verify the numerical method compared with the analytic solutions. The reflection and transmission coefficients of the wave absorbing device change with different wavelengths, wave heights and water-current conditions. The results showed that these coefficients increase with the increasing wavelength. The reflection coefficient increases and the transmission coefficient decreases with the increasing wave height. The reflection and transmission coefficients have a marked decrease because of the wave-current interaction. A conclusion is drawn that the wave-absorbing device has good wave-absorbing performance.

Key words: wave absorbing device; wave factors; reflection and transmission; wave-current interaction