3. Numerical Simulation of Viscous Flow around a Series of Mathematical Ship Models

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This paper describes a numerical method to simulate viscous flow around a ship hull based on the finite-volume concept. Three-dimensional time-averaged Navier-Strokes equation is solved by SIMPLE algorithm using the standard k-ε model of turbulence and a body fitted grid system. Viscous flow fields around a series of mathematical ship models are simulated to examine usefulness of the method and the results are compared with experimental ones. It is shown that the method has the following capabilities; ・To simulate bilge vortices in viscous flow field around a ship stern. ・To compute viscous effect on hull surface pressure. ・To distinguish flow fields and hull surface pressure between ship models with different frame lines. Some further numerical examinations, however, are necessary to obtain the quantitative accuracy for predicting the hull surface pressure and the flow field with strong bilge vortices.
社団法人日本船舶海洋工学会の論文