Fire is one of the greatest dangers in manned space missions. On the International Space Station (ISS) an experiment studies flames in microgravity, using PMMA rods subjected to opposite flow of an inert gas. The propagation of the flame is controlled by two mechanisms of heat transfer, called thermal regime and chemical regime. On Earth (1g) dominates the thermal regime for slow opposite flow; However, in microgravity (μg) a transition between the thermal regime is observed …

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