湾曲風洞流路における非等方性乱流の実験解析

概要

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The experimental study of three dimensional turbulent flow in a distorting duct was made using a laser-Doppler anemometer. To make clear the relationship between mean strain and structure of turbulence is of fundamental importance in all turbulent shear flows. The purpose of this work is to analyze the flow in a distorting duct by comparing present experimental data with published data. The obtained experimental data was compared the other data of Tucker-Reynolds measured by hot wire anemometer and the numerical results using Reynolds stress model. The present experimental data of decay for normal stresses along the center line was close to the calculated results. Separated flow was observed in outlet corner region of a distorting duct by laser-Doppler anemometer and flow visualization technique. Numerical method was also able to predict this separated flow. The three dimensional turbulent flow in a distorting duct is analyzed more clearly by the present experimental data.
一般社団法人日本機械学会の論文
1992-06-25