Computational Fluid Dynamics Prediction of the Flow around Ships

Authors
  1. Yin, D-W.
  2. Zwart, P.J.
  3. Raithby, G.D.
Corporate Authors
Directorate of Defence Industrial Resources, Ottawa ONT (CAN);AEA Technology Engineering Software, Calgary ALTA (CAN)
Abstract
A new free-surface flow model ahs been developed and impelmented into the general-purpose computational fluid dymamics (CFD) code CFX-5.5 by AEA Technology Engineering Software Ltd. The new free-surface model can be applied to predict the location of the free surface for flows around ship hulls, and such capability provides the platform for the evaluation of propeller cavitation, air entrainment in wakes, and drag characteristics associated with a ship design, all of which are problems of interest to designers of naval war ships. The new free-surface flow model features antidiffusive compressive high-resolution spatial and temporal discretization schems and an adaptive mesh refinement algorithm; both features are instrumental in counteracting numerical diffusion and hence in resolving a sharp free-surface interface. Benchmark tests done using the model include several steady-state and transient two-dimensional problems. A series of more practical tests involving flow pas the Wigley parabolic hull provides insight into strategies in solving for flows around ship hulls in general. The numerical results of the Wigley hull test cases agree well with experimental measurements previously reported by other investigators.

Il y a un résumé en français ici.

Keywords
Fee-surface flow model
Report Number
DIR-PR-313 — Project
Date of publication
28 Jul 2001
Number of Pages
70
DSTKIM No
CA020653
CANDIS No
517359
Format(s):
CD ROM

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