An Experimental Study on Interaction and Burning Characteristic and Behavior of Several Droplets

Ink-jet method was used in this experiment to steadily generate the mono-dispersed droplets stream, and they were then burned within a flat-flame heated environment confined with the quartz tubing. Early studies separated the droplet into a significance distance in order to observe the behavior of the single droplets’ combustion. In the report, the droplet generation frequency could be varied widely to study the burning characteristics due to droplet-droplet interaction. According to the recent studies, we could infer that the main factor can influence the droplets’ behavior is the space, which is measured by the droplet’s diameter. The bigger droplets, the longer space we need to avoid interaction.
In addition to an array of droplets, two droplets’ burning characteristics are discussed in this thesis as well. The results show that burning rate will decline when space between droplet array decrease. In the low frequency and two droplet situation, the first droplet’s combustion rate won’t be affected but the second one’s will increase. However, further decreasing their initial separation distance, the second droplet will start to deviate from its proposed trajectory and then form a Y-shape flame.