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Experimental and Numerical Characterization of the Flow Around the Keel of a Yacht

[+] Author Affiliations
Renata M. B. Chaves, Atila P. S. Freire, Alexandre T. P. Alho

Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil

Paper No. IMECE2008-67211, pp. 305-313; 9 pages
doi:10.1115/IMECE2008-67211
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

abstract

The present work carries out a detailed comparison between numerical computations for the flow around the keel and the bulb of a sailboat and some newly obtained laboratory data. Two typical turbulence models are tested: the eddy-viscosity SST model and the second-moment model BSL-RSM-ω. Hot-wire anemometry (HWA) and particle image velocimetry (PIV) are used to characterize the flow around the keel and the bulb of a yacht. The experiments are conducted in a low speed wind tunnel. Measured flow parameters include the mean velocity profiles and second order moments. Both turbulence models are shown to perform well regarding mean velocity and global predictions. Turbulence data predictions, however, are shown to be erroneous by at least one order of magnitude.

Copyright © 2008 by ASME
Topics: Flow (Dynamics) , Keel

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