We present a model for ship hydrodynamics simulations currently under development at SISSA. The model employs potential flow theory and fully nonlinear free surface boundary conditions. The spatial discretization of the equations is performed by means of a collocation BEM. This gives rise to a Differential Algbraic Equations (DAE) system, solved using an implicit BDF scheme to time advance the solution. The model has been implemented into a C++ software able to automatically generate the computational grids from the CAD geometry of the hull. Numerical results on Kriso KCS and KVLCC2 hulls are presented and discussed. Copyright © 2014 by the International Society of Offshore and Polar Engineers (ISOPE).

A fully nonlinearpotential model for ship hydrodynamics directly interfaced with CAD data structures

Mola A.;
2014-01-01

Abstract

We present a model for ship hydrodynamics simulations currently under development at SISSA. The model employs potential flow theory and fully nonlinear free surface boundary conditions. The spatial discretization of the equations is performed by means of a collocation BEM. This gives rise to a Differential Algbraic Equations (DAE) system, solved using an implicit BDF scheme to time advance the solution. The model has been implemented into a C++ software able to automatically generate the computational grids from the CAD geometry of the hull. Numerical results on Kriso KCS and KVLCC2 hulls are presented and discussed. Copyright © 2014 by the International Society of Offshore and Polar Engineers (ISOPE).
2014
Automatic mesh generation
Boundary element method
CAD surfaces
Free surface
Fully nonlinear potential
Semi-Lagrangian
Ship hydrodynamics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11771/25378
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