Wave Transmission Past A Submerged Semicircular Breakwater: A Numerical Approach

Breakwaters are coastal structures that act as protection for harbours and shorelines
from coastal erosion due to the impact of waves. Semicircular breakwaters have been
developed to improve the hydrodynamic performance of the structure. Gupta (2018)
carried out physical modelling to investigate the hydrodynamic coefficients of an
emerged and submerged semicircular breakwater subjected to regular wave conditions.
The experimental results require validation by the numerical outputs. A series of
numerical models using ANSYS-FLUENT were undertaken in this research study to
evaluate wave transmission past a submerged semicircular breakwater. 20 test runs
were chosen based on the experimental inputs given by Gupta (2018). The variables for
this numerical simulation were wave period, wave height and water depth.