CFD Validation of a Container Ship in Calm Water and Head Seas

Gatin, Inno and Vukčević, Vuko and Jasak, Hrvoje (2015) CFD Validation of a Container Ship in Calm Water and Head Seas. = CFD Validation of a Container Ship in Calm Water and Head Seas. In: 18th Numerical Towing Tank Symposium, 28.09.-30.09.2015., Cortona, Italija.

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CFD Validation of a Container Ship in Calm Water and Head Seas_extendedAbstract.pdf - Submitted Version Jezik dokumenta:English

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Official URL: http://bib.irb.hr/datoteka/792578.GatinEtAl_NuTTS2...

Abstract

Added resistance of ships in waves is one of increasingly important problems in naval engineering due to energy efficiency regulations. In this work, validation of the Naval Hydro pack in OpenFOAM is performed by conducting simulations of a KRISO container ship (KCS) in calm water and head waves. Steady resistance and dynamic sinkage and trim at different Froude numbers are compared to experimental data. Mesh refinement study has been carried out for design Froude number in order to asses numerical uncertainty. Seakeeping simulations of the ship in head waves are carried out for a number of different wave parameters at design Froude number. Heave, pitch and added resistance are compared with experimental results. All simulations are performed with fully non–linear, turbulent, two–phase CFD solver. Wave modelling is performed using Spectral Wave Explicit Navier–Stokes Equations (SWENSE) [1] with implicit relaxation zones [2] that are used to prevent wave reflection. In addition to the validation runs, 3-D freak wave simulation encountering a KCS has been performed using the SWENSE solver coupled with a directional Higher Order Spectrum (HOS) [3] method for nonlinear wave propagation.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): CFD, Calm water resistance, Added resistance, Container ship, Validation
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 08 Apr 2016 11:40
Last Modified: 19 Sep 2017 15:32
URI: http://repozitorij.fsb.hr/id/eprint/5534

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