Modeling of Nearshore Wave Transformations behind Submerged Breakwaters

Breakwaters can generally be divided into three categories based on where the sea level is: submerged breakwater, emerged breakwater, and lower limit breakwater. Nearshore barriers with an underwater structure called submerged breakwaters are used to dissipate the force of wave strikes and safeguard the shoreline. The wave transmission coefficient value can be used to assess submerged breakwaters\u27 contribution to the wave energy decrease. In the past mathematical and physical models were used to understand how the submerged breakwater affects incoming wave energy, hydrodynamic processes, and morphological changes. In the present study, the MIKE21 SW software as the numerical model was employed. The impact of the crest submergence depth and crest width on transmission coefficient value for the case of impermeable submerged breakwaters was studied. Contour maps of significant wave height were generated. The transmission coefficient is significantly influenced by the relative submergence depth when the relative submergence depth ≤ 2. However, the transmission coefficient is no longer impacted by the relative submergence depth \u3e 2. The best relative submergence depth falls within the range of values from 0.25 to 1.00