流路中の三角平板による混合促進とその評価(熱工学, 内燃機関, 動力など)

抄録

To evaluate the promotion of turbulent mixing, the time-average and fluctuation of fuel concentration were measured in a mixing channel with triangular plates using Rayleigh scattering method. Based on the obtained results, the deviations of fuel distribution were calculated at some crosssections, and also probability density functions were estimated by comparing with measured deviation and predicted ones from turbulence-mixing model. Furthermore, the effect of mixture heterogeneity on NO concentration in a burnt gas was demonstrated, and the trade-off relation between a mixing evolution and an increase in pressure drop was exhibited.