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Numerical Investigation of Influence of Surging Motion on Viscous Flows Around a Wigley Hull Running in Incident Waves

[+] Author Affiliations
Munehiko Hinatsu, Takanori Hino

National Maritime Research Institute, Mitaka, Tokyo, Japan

Paper No. FEDSM2002-31394, pp. 923-929; 7 pages
doi:10.1115/FEDSM2002-31394
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

This paper presents the effect of surging motion on viscous flows around a Wigley ship running in incident waves through CFD simulation. The computational method used is based on the Navier-Stokes equations in unstructured grid system with pseudo-compressibility assumption. Since a ship changes its attitude when it runs in incident waves, we have to modify the code to be able to treat the ship motion by use of a moving grid technique. In order to simulate surging motion, the ship is connected with a spring to keep its mean position. We show the influence of surging motion on wake and ship resistance using springs of different strengths. Numerical results and discussions are shown.

Copyright © 2002 by ASME

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