A comparison between constant volume induction times and results from spatially resolved simulation of ignition behind reflected shocks: implications for shock tube experiments

Melguizo-Gavilanes, J.; Bauwens, Luc

doi:10.1007/s00193-012-0403-x

Cited by 13 publications

(1 citation statement)

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“…Three-step models [25,28,26,29] allow much more flexibility than single-step kinetics which unavoidably associates heat release with initiation, and offer additional physical insight with a rather negligible increase in computational cost.…”

Section: Three-step Chain-branching Kineticsmentioning

confidence: 99%

Influence of the chemical modeling on the quenching limits of gaseous detonation waves confined by an inert layer

Taileb

Melguizo-Gavilanes

Chinnayya

2020

Combustion and Flame

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The effect of chemistry modeling on the flow structure and quenching limits of detonations propagating into reactive layers bounded by an inert gas is investigated numerically. Three different kinetic schemes of increasing complexity are used to model a stoichiometric H 2-O 2 mixture: single-step, three-step chainbranching and detailed chemistry. Results show that while the macroscopic characteristics of this type of detonations e.g. velocities, cell-size irregularity and leading shock dynamics, are similar among the models tested, their instantaneous structures are significantly different before and upon interaction with the inert layer when compared using a fixed height. When compared at their respective critical heights, h crit , i.e. the reactive layer height at which successful detonation propagation is no longer possible, similarities in their structures become apparent. The numerically predicted critical heights increase as h crit, Detailed � h crit, 3-Step < h crit, 1-Step. Notably, h crit, Detailed was found to be in agreement with experimentally reported values. The physical mechanisms present in detailed chemistry and ne

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Section: Three-step Chain-branching Kineticsmentioning

confidence: 99%