Wave drift forces and moments on two ships with side-by-side arrangement

For the numerical simulation of motions of two ships in close proximity or of a LNG carrier moored to a FPSO, accurate prediction of the wave drift force and moment on each ship is of great importance. In particular, hydrodynamic interactions are expected to be large and complex because of narrow gap between side-by-side two ships, which must be taken into account in the design of the mooring system