CFDコードにより推定した流場の検証

概要

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The purpose of this paper is the validation of a simulation for viscous flow fields around the ship by using CFD (Computational Fluid Dynamics) code. Recently, in naval architectare many kinds of CFD codes have been developed and have come to be used as simulation tools in the ship design. Using CFD code as a hull design tool, it is most important to understand the difference between real flow and computed results. This paper clearly presents the quantity difference between a measured flow field and a computed one. First this paper validates that CFD code can simulate the Reynolds number effect in towing condition by comparing the computed results with the measured flow. Second the comparison of tow type ships which have same aft body and different fore body represents that the CFD code can simulate the difference of the flow field based on fore body shape. Finally, it is shown that the CFD code can qualitatively simulate the flow in self-propulsion condition without rudder. In these results, CFD code is an effective tools to estimate the flow around the ship.
社団法人日本船舶海洋工学会の論文
1997-09-25