Influence of viscous effects on the hydrodynamics of ship- like sections undergoing symmetric and anti-symmetric motions, using RANS


Quérard, Aymeric, Temarel, Pandeli and Turnock, Steve (2008) Influence of viscous effects on the hydrodynamics of ship- like sections undergoing symmetric and anti-symmetric motions, using RANS. In, 27th International Conference on Offshore Mechanics and Arctic Engineering, Estoril, Portugal, 15 - 20 Jun 2008. Portugal, American Society of Mechanical Engineers10pp.

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Description/Abstract

The aim of this investigation is to assess the influence of
viscous effects on the predicted hydrodynamic coefficients for a
range of ship-like sections, such as rectangular, triangular, chine
and bulbous. Hydrodynamic coefficients, of added mass or
inertia and fluid damping, for two-dimensional sections
harmonically heaving, swaying and rolling at the undisturbed
free surface are obtained using the ANSYS-CFX11.0 RANS
solver, for a range of frequencies of oscillation. All predictions
are compared with available experimental measurements and
other numerical predictions (potential flow and RANS). It is
concluded from these comparisons that the proposed RANS
approach can offer a better prediction for the hydrodynamic
coefficients when viscous effects become significant, in
particular for sway and roll motions. It is important that a
reliable and systematic approach is adopted for the application
of the unsteady free surface RANS methodology.

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Keywords: ship section hydrodynamics, cfd
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Q Science > QA Mathematics > QA76 Computer software
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
ePrint ID: 52458
Date Deposited: 01 Jul 2008
Last Modified: 27 Mar 2014 18:35
URI: http://eprints.soton.ac.uk/id/eprint/52458

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