RT Journal Article ID 438d20c27ec25778 A1 Mench, M. M. A1 Haas, J. P. T1 COMBUSTION AND FLAME SPREADING OF ALUMINUM TUBING IN HIGH PRESSURE OXYGEN JF International Journal of Energetic Materials and Chemical Propulsion JO IJEMCP YR 2002 FD 2002-01-01 VO 5 IS 1-6 SP 438 OP 452 K1 aluminum/oxygen reaction K1 violent energy release K1 promoted ignition K1 flame spreading K1 melt layer K1 high-pressure K1 promoted ignition K1 burning AB The promoted ignition, flame spreading, and combustion phenomena of aluminum alloy 3003 tubing in high-pressure gaseous oxygen (GOX) were studied. The motivation for this study is to obtain burn rate data for aluminum 3003 in a high-pressure GOX environment and to compare the results with the burning behavior of aluminum in liquid oxygen (LOX) at lower pressure. The violent burning of aluminum in a LOX environment has been termed a violent energy release, or VER reaction. This reaction has been observed to result in extremely rapid combustion of aluminum at rates many times greater than that of aluminum in a GOX environment at similar pressures. The upward burning rate data for aluminum tubing in high-pressure quiescent oxygen indicate that no VER reaction exists in this environment, despite the high ambient GOX density. The burning rates of aluminum tubes with two different wall thicknesses are correlated using a power-law relationship for pressures ranging from 2.76 to 55.16 MPa, yielding a pressure exponent of around 0.6 for both cases. High-speed video of the burning event was also recorded, showing the periodic dripping of molten satellite particles. The molten droplet growth and drop-off cycle becomes more rapid with increasing pressure. An equation describing the growth of molten material accumulation is derived to explain this behavior. PB Begell House LK https://www.dl.begellhouse.com/journals/17bbb47e377ce023,76f8e14974df93a8,438d20c27ec25778.html