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Premixed laminar C_1–C_2 stagnation flames: Experiments and simulations with detailed thermochemistry models

Bergthorson, Jeffrey M. and Dimotakis, Paul E. (2007) Premixed laminar C_1–C_2 stagnation flames: Experiments and simulations with detailed thermochemistry models. Proceedings of the Combustion Institute, 31 . pp. 1139-1147. ISSN 15407489. https://resolver.caltech.edu/CaltechAUTHORS:20160602-162343641

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Abstract

A generally accepted mechanism for the combustion of C_1 and C_2 hydrocarbons is still elusive. This paper discusses a technique that can further validate and constrain such mechanisms, towards the development of a comprehensive model for small hydrocarbon combustion. The approach relies on detailed measurements of strained premixed flames in a jet-wall stagnation flow. This geometry yields a flow with boundary conditions that can be reliably specified, facilitating simulation and detailed comparisons with experiment. The diagnostics are optimized for accuracy, minimal flame disturbance, and rapid simultaneous recording of velocity and CH radical profiles. Flame simulations rely on a one-dimensional hydrodynamic model, a multi-component transport formulation, and several detailed chemistry models. Direct comparisons between experiment and simulation allow for an assessment of the various models employed. Experimental data for methane, ethane, and ethylene flames are compared to numerical simulations using several thermochemistry models. GRI-Mech 3.0, a C_3 model by Davis et al. (DLW99), and two versions of the San Diego mechanism are utilized. While GRI-Mech 3.0 and the DLW99 models accurately predict experiment in some cases, the 2005/03/10 revision of the San Diego mechanism is found to give the best overall agreement with experiment for methane, ethane, and ethylene flames.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.proci.2006.07.110DOIArticle
http://www.sciencedirect.com/science/article/pii/S1540748906001192PublisherArticle
Alternate Title:Premixed laminar C1–C2 stagnation flames: Experiments and simulations with detailed thermochemistry models
Additional Information:© 2006 The Combustion Institute. We acknowledge discussions with K. Sone and L. Benezech, as well as assistance by D. Lang with digital-imaging, and D. Goodwin with the CANTERA software package. The work was funded by AFOSR Grant F49620-01-1-0006, whose support is gratefully acknowledged.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)F49620-01-1-0006
Subject Keywords:CANTERA; Kinetic mechanisms; Stagnation flames; Particle streak velocimetry; Planar laser induced fluorescence
Record Number:CaltechAUTHORS:20160602-162343641
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160602-162343641
Official Citation:Jeffrey M. Bergthorson, Paul E. Dimotakis, Premixed laminar C1–C2 stagnation flames: Experiments and simulations with detailed thermochemistry models, Proceedings of the Combustion Institute, Volume 31, Issue 1, January 2007, Pages 1139-1147, ISSN 1540-7489, http://dx.doi.org/10.1016/j.proci.2006.07.110. (http://www.sciencedirect.com/science/article/pii/S1540748906001192)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67601
Collection:CaltechAUTHORS
Deposited By: Paul Dimotakis
Deposited On:13 Jun 2016 21:42
Last Modified:03 Oct 2019 10:07

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