The aim of the work is to evaluate the 3-dimensional pressure distribution exerted on the planing hulls by Morabito empirical method and by numerical simulations performed using the commercially available flow simulation software CD-Adapco STAR CCM+. For planing hull model, tested in towing tank by authors, Computational Fluid Dynamics (CFD) simulations have been performed at three speeds. The “goodness” of numerical prediction has been controlled comparing the total resistance, sinkage and trim prediction against experimental values. The pressure distribution along the keel and at three buttocks has been assessed for all considered speeds. From the Morabito’s method, the hydrodynamic and total pressure has been assessed for the same test cases. Paper reports some of the numerical set up characteristics and extensive comparison of results. In conclusions, the discussion on pro’s and contra’s of both methods is given, with respect to obtained results and physical consistency in applied mathematical models.
Three-dimensional pressure distribution on planing hulls / Pennino, S.; Klymenko, H.; Scamardella, A.; Mancini, Simone; Begovic, Ermina. - Vol.1:(2016), pp. 353-360. (Intervento presentato al convegno Maritime Technology and Engineering 3 tenutosi a Lisboa, Portugal nel 3-6 July 2016).
Three-dimensional pressure distribution on planing hulls
MANCINI, SIMONE;BEGOVIC, ERMINA
2016
Abstract
The aim of the work is to evaluate the 3-dimensional pressure distribution exerted on the planing hulls by Morabito empirical method and by numerical simulations performed using the commercially available flow simulation software CD-Adapco STAR CCM+. For planing hull model, tested in towing tank by authors, Computational Fluid Dynamics (CFD) simulations have been performed at three speeds. The “goodness” of numerical prediction has been controlled comparing the total resistance, sinkage and trim prediction against experimental values. The pressure distribution along the keel and at three buttocks has been assessed for all considered speeds. From the Morabito’s method, the hydrodynamic and total pressure has been assessed for the same test cases. Paper reports some of the numerical set up characteristics and extensive comparison of results. In conclusions, the discussion on pro’s and contra’s of both methods is given, with respect to obtained results and physical consistency in applied mathematical models.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.