C123 三角平板後流におけるガス流動および混合のレーザ計測

元データ 2000-07-25 日本流体力学会

概要

This study demonstrated the feasibility of some laser diagnostics for gas flows and fuel-air mixing. Turbulent flow in a mixing channel with triangular plates was visualized by laser-light sheet method and velocity distributions were measured by cross-correlation particle image velocimetry. Also, fuel distributions were measured by Rayleigh scattering method. The obtained results show that triangular plates produce a large-scale fluid motion perpendicular to the mean streamline together with small eddies. They might stir the bulk flow and promote the turbulent mixing downstream, thus resulting in a more homogeneous mixture, whereas in the case without triangular plates fuel distributes heterogeneously and the variance of mixture concentration is high even in the flow downstream.

著者

塩路 昌宏 京都大学エネルギー科学研究科
河崎 澄 滋賀県立大学工学部
塩路 昌宏 京大エネ科
河崎 澄 京大エネ科
川那辺 洋 京大エネ科

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