Numerical Simulation on Hydraulic Performances of Quarter Circular Breakwater

Quarter circular breakwater (QCB) is a new-type breakwater developed from semi-circular breakwater (SCB). The superstructure of QCB is composed of a quarter circular front wall, a horizontal base slab and a vertical rear wall. The width of QCB's base slab is about half that of SCB, which makes QCB suitable to be used on relatively firm soil foundation. The numerical wave flume based on the Reynolds averaged Navier-Stokes equations for impressible viscosity fluid is adopted in this paper to simulate the hydraulic performances of QCB. Since the geometry of both breakwaters is similar and SCB has been studied in depth, the hydraulic performances of QCB are given in comparison with those of SCB.