Effect of Ambient Atmosphere on Flame Spread at Microgravity

The effects of atmosphere composition on the rate of opposed-flow flame spread (Sf ) over thin solid fuel beds at microgravity (μg) were measured and compared to earth gravity (lg) results and theoretical predictions. Two modifications to standard atmospheres were considered. First, the effects of sub-flammability-limit concentrations of a gaseous fuel (CO or CH4) were measured and compared to an existing theoretical model that was extended to...