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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Response Amplitude Operators of a Wigley Ship Model via Computational Fluid Dynamics
Submission Author:
Roger Matsumoto Moreira , RJ , Brazil
Co-Authors:
Roger Matsumoto Moreira, rafael santos, Sergio Daruis, Guilherme Rojo, Raphael David Aquilino Bacchi
Presenter: Roger Matsumoto Moreira
doi://10.26678/ABCM.COBEM2017.COB17-1574
Abstract
This work aims to predict numerically the vertical motions (heave and pitch) of a Wigley ship model heading over regular waves. The flow is assumed to be incompressible and viscous with mass and momentum fluxes being conserved. The Computational Fluid Dynamics (CFD) software ANSYS Fluent is employed to solve continuity and the unsteady Reynolds Averaged Navier-Stokes (RANS) equations with a Shear-Stress Transport (SST) κ-ω turbulence model. Air-water interface is modeled via the Volume of Fluid (VOF) method. Different sea conditions are simulated with Response Amplitude Operators (RAOs) being compared to experiments, with a good agreement being found.
Keywords
Ship motions, Water waves, RAO, CFD
