TY - GEN
T1 - Radiant ignition of solid propellants
AU - Weber, J. W.
AU - Brewster, M. Q.
PY - 2002
Y1 - 2002
N2 - In this work, the ignition of HMX propellants by a radiant source is investigated. The results of onedimensional numerical simulations using quasi-steady Zeldovich-Novozhilov theory with simplified kinetics are presented. Effects of radiant flux and absorption coefficient on the ignition process are considered. In addition, the region of self-sustaining deflagration after de-radiation is mapped, and compared to Summerfield's classical go/no-go mapping. Two critical flux levels, which bound the upper limit of this go/no-go region, are identified. Additionally, the variation of this ignition corridor with absorption coefficient and pressure is examined. Comparison to several relevant experimental results is included to validate the capability of this model. In general, the results showed that while further refinement is needed (especially for the simplified gas phase kinetics), modeling of the go/no-go behavior seems to be strongly dependent on thermal relaxation processes in the solid phase.
AB - In this work, the ignition of HMX propellants by a radiant source is investigated. The results of onedimensional numerical simulations using quasi-steady Zeldovich-Novozhilov theory with simplified kinetics are presented. Effects of radiant flux and absorption coefficient on the ignition process are considered. In addition, the region of self-sustaining deflagration after de-radiation is mapped, and compared to Summerfield's classical go/no-go mapping. Two critical flux levels, which bound the upper limit of this go/no-go region, are identified. Additionally, the variation of this ignition corridor with absorption coefficient and pressure is examined. Comparison to several relevant experimental results is included to validate the capability of this model. In general, the results showed that while further refinement is needed (especially for the simplified gas phase kinetics), modeling of the go/no-go behavior seems to be strongly dependent on thermal relaxation processes in the solid phase.
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M3 - Conference contribution
AN - SCOPUS:84896838715
SN - 9781624101151
T3 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
BT - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
T2 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002
Y2 - 7 July 2002 through 10 July 2002
ER -