CFD Analysis of the Performance of a Fast Catamaran with Rough Sea

Abstract

Authors: G. Lombardi, M. Maganzi

Keywords: fast catamaran, CFD hydrodynamics, rough sea, free-surface, 6-DOF, marine performance

High-speed catamaran design requires accurate prediction of performance and dynamic behavior under both calm and rough sea conditions. Advanced CFD techniques enable the simultaneous analysis of hydrodynamics, aerodynamics, and vessel motion, providing detailed insight into stability, loads, and propulsion efficiency. A fully unsteady numerical approach with free-surface modeling and six-degrees-of-freedom rigid body motion allows realistic simulation of hull dynamics in waves.