Abstract
This research conducted microgravity experiments to investigate flame-spread characteristics of droplet-cloud element. The results show that the flame-spread rate to the droplet in the perpendicular direction to the axis of two droplet interaction was greater than that to the droplet in the same direction to the axis of two droplet interaction. The flame-spread-limit distance also increased with the perpendicular direction to the axis of two droplet interaction. The temperature distribution around burning droplets was measured by Thin Filament Pyrometry (TFP) method based on visible light radiation from SiC fibers suspending droplets.
