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http://dx.doi.org/10.3744/SNAK.2008.45.1.29

Unsteady RANS Analysis of the Hydrodynamic Response for a Ship with Forward Speed in Regular Wave  

Park, Il-Ryong (Maritime and Ocean Engineering Research Institute, KORDI)
Kim, Kwang-Soo (Maritime and Ocean Engineering Research Institute, KORDI)
Kim, Jin (Maritime and Ocean Engineering Research Institute, KORDI)
Van, Suak-Ho (Maritime and Ocean Engineering Research Institute, KORDI)
Publication Information
Journal of the Society of Naval Architects of Korea / v.45, no.1, 2008 , pp. 29-41 More about this Journal
Abstract
The present paper provides a CFD analysis of diffraction problem for a ship with forward speed using an unsteady RANS simulation method, a WAVIS code. The WAVIS viscous solver adopting a finite volume method has second order accuracy in time and field discretizaions for the RANS equations. A two phase level-set method and a realizable ${\kappa}-{\varepsilon}$ turbulence model are adopted to compute the free surface and to meet the turbulence closure, respectively. To validate the capability of the present numerical methods for the simulation of an unsteady progressive regular wave, computations are performed for three grid sets with refinement ratio of ${\sqrt{2}}$. The main simulation is performed for a DTMB5512 model with a forward speed in a regular head sea condition. Validation of the present numerical method is carried out by comparing the present CFD results with available unsteady experimental data published in the 2005 Tokyo CFD Workshop: resistance, heave force, pitch moment, unsteady free surface elevations and velocity fields.
Keywords
Ship diffraction problem; Unsteady RANS flow; Incoming wave; Level-Set Method; Finite volume method;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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