Floating horizontal half cylinder is the next numerical example. Free surface hydrodynamics is calculated using the 3D direct integral formulation and Kelvin GF for water of infinite depth.

Main body dimensions read L = 50 m, B = 20 m, T = 10 m. Wetted surface of the half cylinder is meshed using 7500 panels. Only zero forward speed case is analyzed and the wave frequency is set to 1.56993 rad/s (which corresponds to the wave length equal to L/2).

Heading angle of incoming waves is set to 90 deg. The dynamic radiation pressures in all 6 DOFs are shown, including also dynamic diffraction pressures and FK pressures.