Wave Dissipation Characteristics of A Mountain-Type Breakwater

作者：GONG Ye-jun,ZHAN Jie-min,HU Wen-qing,FAN Qing,CAI Wen-hao

摘要：One mountain-type breakwater consisting of two inclined plates and one vertical plate is proposed based on several types of traditional free surface breakwaters, including the horizontal plate, curtain wall, and trapezoidal barriers. The interaction between the regular waves and the fixed free surface mountain-type breakwater is measured in one wave flume(15.0 m×0.6 m×0.7 m). The wave propagation, reflection, and transmission process are simulated using the VOF method and the hybrid SAS/laminar method. The simulated wave profiles are consistent with the experimental observations. For waves with a length smaller than four times width of the mountain-type breakwater, the reflected wave amplitudes are slightly larger than those of the vertical-plate breakwater, while the wave transmission coefficients are all smaller than 0.5, and the wave loss coefficients are larger than 0.7. The wave energy is dissipated by wave breaking on the windward inclined plate, and turbulent flow around the vertical plate and the leeward inclined plate.

發文機構：MOE-LCSM Department of Applied Mechanics and Engineering

關鍵詞：wave-structureinteractionmountain-typebreakwaterfreesurfacebreakwater

分類號： U65[交通運輸工程—港口、海岸及近海工程]