A 3D Unstructred Grid Method for Incompressible Viscous Flows〔含 討論〕

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概要

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• An unstructured grid method for simulating three-dimensional incompressible viscous flows is presented. The governing equations to be solved numerically are the Navier-Stokes equations with artificial compressibility. The spatial discretization is based on a finite volume method for unstructured grid system. Second order accuracy in space is achieved using a flux-difference-splitting scheme with MUSCL approach for inviscid terms and a central difference scheme for viscous terms. Time integration is carried out by the backward Euler method. The linear system derived from the linearization in time is solved by the Gauss-Seidel iteration. For the analysis of high Reynolds number flows, the one equation turbulence model proposed by Spalart and Allmaras is used. The turbulence equation is solved in a similar way as the Navier-Stokes equations. Brief description of the numerical method is given together with some computational results for flows around a 2 D wing section and a ship form.

• 社団法人日本船舶海洋工学会の論文

著者

• Hino Takanori

  Ship Research Institute

関連論文

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• 2. Numerical Simulation of a Viscous Flow with a Free Surface around a Ship Model
• A Comparative Study of Zero- and One-Equation Turbulence Models for Ship Flows
• A 3D Unstructred Grid Method for Incompressible Viscous Flows〔含 討論〕
• An Efficient Algorithm for Simulating Free-Surface Turbulent Flows around an Advancing Ship

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