AIAA Journal · 1990 · 66 citations · 10 references
EngineeringAerospace EngineeringPhysicsCombustionHeat TransferThermodynamicsCombustion FundamentalsCombustion ProcessesDiffusion FlamesFlame StructureIgnitionLaminar FlamesCylindrical FlamesFlame IgnitionFlame InitiationFlame Propagation In MicrogravityIgnition In MicrogravityJet FlamesLaminar Diffusion FlamesMicrogravity Effects
This paper presents the results of studies on the ignition and behavior of cylindrically symmetric, laminar diffusion flames of methane and propane in quiescent air under microgravity conditions. In prior research, similar flames were ignited in normal gravity and then subjected to the microgravity condition once the flame was established. In this paper, comparisons between the two methods of ignition and observations of the flame behavior and distinct nature of flame color and luminosity are presented. Application of a steady-state, parabolic model has shown satisfactory agreement between the predicted and observed flame heights for those flames that reached a near-steady state in the 2.2s period of microgravity
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