Vortex Formation behind a Vertical Slender Plate and Wave Force

In this study, a numerical model for the easy estimation of the total wave forces acting on a vertical slender plate installed in waves is presented. For the numerical modeling, first, a discrete vortex method combined with BEM is developed on the basis of the strip method, in order to simulate the vortex formation around the plate. Furthermore, a wave force equation is newly derived that is independent of Morison's equation and that describes the effect of vortex shedding explicitly. The total wave forces are estimated by integrating the results from the wave force equation along the vertical direction. The validity of the numerical model for the flow field was verified by experiments using. PIV (Particle Image Velocimetry). Subsequently, the validity of the model for the estimation of the total wave forces acting on the plate was finally verified by experimental measurements.