Interaction effects on combustion of alcohol droplet pairs

Experimental investigation was conducted on two droplet-array combustion of methanol and methanol/dodecanol mixture fuels in microgravity. For methano l, effects of ambient pressure and droplet spacing were examined. Results s how that the droplet lifetime decreases with increasing spacing at relative ly low pressure and the droplet lifetime becomes independent of spacing at higher-subcritical and supercritical pressures. For methanol/dodecanol mixt ure, effects of pressure, fuel composition were investigated in terms of oc currence of disruption. Disruption of droplet during combustion was demonst rated both for single droplet and droplet pairs.