平板摩擦抵抗値の再検討について

概要

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This paper presents a new friction coefficient of flat plate in wide Raynols number range. The main purpose of this study is to present a verification data for CFD calculation, which will be applied to predict ship performance in full scale Reynols number. The friction coefficient is calculated by solving a differential equation without approximation that is based on momentum equation and Coles' wall-wake law. The parameters used in Coles' wall-wake law for the assumption of the velocity profile in turbulent boundary layer are determined based on reliable experimental data by Osaka et al. The calculated results of flat plate frictional resistance, local frictional resistance and velocity profile in turbulent boundary layer agree well with experimental ones. However, few experimental data aviod to verify the results at high Reynols number, therfore the research should be continued focusing on the behavior of wake function at high Reynols number.
社団法人日本船舶海洋工学会の論文
2003-03-25