An experimental and numerical study of the free roll decay motion for a vessel of the Italian Navy is presented. Experimentally both sea trials and model scale tests have been carried out; numerical analysis has been performed by means of unsteady RANS simulations. The focus is on the analysis of the roll motion coef-ficients (damping and period of oscillations) at di erent Froude and Reynolds numbers. To this aim, experiments and numerical simulations were carried out at di erent Froude and Reynolds numbers. Sea trials were carried out on the Italian Navy ship Comandante Bettica in the Mediterranean Sea, close to the coast of Sicily; models experiments were performed in the towing tank at INSEAN. Computations were carried out by means of an in-house unsteady RANS solver
Experimental and Numerical Analysis of the Roll Decay Motion for a Patrol Boat / Broglia, R; Bouscasse, B; Di Mascio, A; Lugni, C; Atsavapranee, P. - (2009), pp. 709-716. ( ISOPE 2009 Osaka, japan 21-26 giugno 2009).
Experimental and Numerical Analysis of the Roll Decay Motion for a Patrol Boat
Lugni C;
2009
Abstract
An experimental and numerical study of the free roll decay motion for a vessel of the Italian Navy is presented. Experimentally both sea trials and model scale tests have been carried out; numerical analysis has been performed by means of unsteady RANS simulations. The focus is on the analysis of the roll motion coef-ficients (damping and period of oscillations) at di erent Froude and Reynolds numbers. To this aim, experiments and numerical simulations were carried out at di erent Froude and Reynolds numbers. Sea trials were carried out on the Italian Navy ship Comandante Bettica in the Mediterranean Sea, close to the coast of Sicily; models experiments were performed in the towing tank at INSEAN. Computations were carried out by means of an in-house unsteady RANS solverI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
