Coupled simulation of nonlinear ship motions and a free surface tank

This paper investigates the coupled nonlinear dynamics of a vessel with a free surface tank onboard. To this end, a 6-DOF ship motions simulation code is coupled with a CFD solver addressing the behaviour of the fluid in the tank. The nonlinear ship motions code is of the blended (hybrid) type, intended for the simulation of free running vessels in waves. The nonlinear CFD solver is a GPU-based 3D Weakly-Compressible Smoothed-Particle Hydrodynamic (WCSPH) solver. Numerical results are presented for thenonlinear roll motion of a vessel with and without a free surface tank in regular beam waves withdifferent steepnesses. Nonlinear phenomena are identified and discussed.



Titolo: Coupled simulation of nonlinear ship motions and a free surface tank
Autori: 
BULIAN, GABRIELE
FRANCESCUTTO, ALBERTO
mostra contributor esterni 
Data di pubblicazione: 2016
Rivista: 
OCEAN ENGINEERING  
Abstract: This paper investigates the coupled nonlinear dynamics of a vessel with a free surface tank onboard. To this end, a 6-DOF ship motions simulation code is coupled with a CFD solver addressing the behaviour of the fluid in the tank. The nonlinear ship motions code is of the blended (hybrid) type, intended for the simulation of free running vessels in waves. The nonlinear CFD solver is a GPU-based 3D Weakly-Compressible Smoothed-Particle Hydrodynamic (WCSPH) solver. Numerical results are presented for thenonlinear roll motion of a vessel with and without a free surface tank in regular beam waves withdifferent steepnesses. Nonlinear phenomena are identified and discussed.
Handle: http://hdl.handle.net/11368/2880887
Digital Object Identifier (DOI): http://dx.doi.org/10.1016/j.oceaneng.2016.03.015
URL: http://www.sciencedirect.com/science/article/pii/S0029801816001220
http://www.journals.elsevier.com/ocean-engineering/
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