気流中における炭化水素液滴列の蒸発

概要

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An experimental study was made of the evaporation of the linear array of hydrocarbon droplets suspended on quartz threads in a uniform stream of air. The effect of inter-droplet distance on the rate constant of evaporation was extensively studied under various ambient conditions. The interaction between the neighboring droplets in the evaporation process was discussed on the basis of the profiles of vapor mass fraction, velocity and temperature around a droplet, which were measured with the application of the laser Rayleigh scattering technique, LDV and a fine thermocouple respectively. The results showed that the rate constant of evaporation of the downstream droplet decreased with a decrease in the inter-droplet distance. The limit of inter-droplet distance which caused the interaction showed a maximum as a function of the Reynolds number. It is most probable that the decrease of rate constant of evaporation of the downstream droplet was caused primarily by the variation of the vapor concentration around it.
一般社団法人日本機械学会の論文
1988-07-25