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ARTÍCULO
TITULO

3D Numerical Simulations of Green Water Impact on Forward-Speed Wigley Hull Using Open Source Codes

Linfeng Chen    
Yitao Wang    
Xueliang Wang and Xueshen Cao    

Resumen

A series of CFD RANS simulations are presented for Wigley hulls of two freeboard heights progressing with forward speed in waves. Free surface effects are captured using the Volume of Fluid (VOF) method embedded in open source software OpenFOAM. Comparisons of heave, pitch motions and added resistance of the first Wigley model against the experiments of Kashiwagi (2013) confirm the numerical validity of the hydrodynamic modelling approach. Further simulations for the lower-freeboard Wigley model reveal that the highest green water impact on decks appears in way of ??/??=1.3 ? / L = 1.3 and at the highest instantaneous pitch amplitude where the water propagates far downstream and across the deck. The simulations also demonstrate that the green water events are associated with air bubble entrapment.

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