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Ignition of hydrogen-air mixtures under volumetric expansion

Mével, R. and Melguizo-Gavilanes, J. and Davidenko, D. (2019) Ignition of hydrogen-air mixtures under volumetric expansion. Proceedings of the Combustion Institute, 37 (3). pp. 3503-3511. ISSN 1540-7489. https://resolver.caltech.edu/CaltechAUTHORS:20180827-094621891

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Abstract

A better understanding of chemical kinetics under volumetric expansion is important for a number of situations relevant to industrial safety including detonation diffraction and direct initiation, reflected shock-ignition at obstacles, ignition behind a decaying shock, among others. The ignition of stoichiometric hydrogen-air mixtures was studied using 0D numerical simulations with time-dependent specific volume variations. The competition between chemical energy release and expansion-induced cooling was characterized for different cooling rates and mathematical forms describing the shock decay rate. The critical conditions for reaction quenching were systematically determined, and the thermo-chemistry dynamics were analyzed near the critical conditions.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.proci.2018.07.124DOIArticle
ORCID:
AuthorORCID
Mével, R.0000-0002-0032-350X
Melguizo-Gavilanes, J.0000-0001-5174-6003
Additional Information:© 2018 The Combustion Institute. Published by Elsevier. Received 1 December 2017, Revised 20 July 2018, Accepted 30 July 2018, Available online 25 August 2018.
Group:GALCIT
Subject Keywords:Ignition; Hydrogen; Expansion; Chemical kinetics
Issue or Number:3
Record Number:CaltechAUTHORS:20180827-094621891
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180827-094621891
Official Citation:R. Mével, J. Melguizo-Gavilanes, D. Davidenko, Ignition of hydrogen-air mixtures under volumetric expansion, Proceedings of the Combustion Institute, Volume 37, Issue 3, 2019, Pages 3503-3511, ISSN 1540-7489, https://doi.org/10.1016/j.proci.2018.07.124. (http://www.sciencedirect.com/science/article/pii/S154074891830542X)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89162
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:27 Aug 2018 18:01
Last Modified:03 Oct 2019 20:13

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