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Hydrodynamics of ship-like sections in heave, sway and roll motions using RANS

Querard, A.B.G., Temarel, P. and Turnock, S.R. (1970) Hydrodynamics of ship-like sections in heave, sway and roll motions using RANS In Maritime Industry, Ocean Engineering and Coastal Resources: Proceedings of the 12th International Congress of the International Maritime Association. vol. Volume 1: Marit, Taylor and Francis. 7 pp, pp. 77-83.

Record type: Conference or Workshop Item (Paper)


A two-dimensional approach using a commercial RANS solver (ANSYS CFX10) is presented here to obtain the hydrodynamic coefficients of cylinders swaying, heaving and rolling in presence of a free surface. The results derived in the time and frequency domains are compared with available experimental and numerical results. The method is successfully validated for a submerged circular cylinder swaying. Particularly good agreement is obtained in the medium frequencies range for a rectangular cylinder swaying and heaving at a free surface. For roll, the problem happens to be highly mesh-sensitive due to the complex mechanism of vortex shedding occurring at the sharp corners, even at low roll amplitudes. Mesh density at the corners influences the smearing of the vortex, the prediction of vorticity and the position of the cores, which have a large impact on fluid damping. A hybrid mesh technique is proposed to overcome the compromise between mesh refinement and low total number of cells.

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Published date: 1 January 1970
Venue - Dates: 12th International Maritime Association of the Mediterranean Congress (IMAM 2007), 2007-09-02 - 2007-09-06
Organisations: Fluid Structure Interactions Group


Local EPrints ID: 48848
ISBN: 9780415455237
PURE UUID: af99bbfb-bb84-442e-a3c0-37f3fb19375f
ORCID for P. Temarel: ORCID iD
ORCID for S.R. Turnock: ORCID iD

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Date deposited: 16 Oct 2007
Last modified: 17 Jul 2017 14:58

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Author: A.B.G. Querard
Author: P. Temarel ORCID iD
Author: S.R. Turnock ORCID iD

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