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Title: Flow field and scalar measurements in a series of turbulent partially-premixed dimethyl ether/air jet flames

Abstract

Here, we present a series of benchmark flames consisting of six partially-premixed piloted dimethyl ether (DME)/air jet flames. These flames provide an opportunity to understand turbulence-flame interactions for oxygenated fuels and to develop predictive models for these interactions using a canonical burner geometry. The development of accurate models for DME/air flames would establish a foundation for studies of more complex oxygenated fuels. The flames are stabilized on a piloted jet burner similar to that of the partially-premixed methane/air jet flames that have been studied extensively within the context of the TNF Workshop. This series of six jet flames spans jet exit Reynolds numbers, ReD, from 29,300 to 73,300 and stoichiometric mixture fractions, ξst, from 0.35 to 0.60. Flame conditions range from very low probability of localized extinction to a high probability of localized extinction and subsequent re-ignition. Measurements in the flames are compared at downstream locations from 5 to 25 diameters above the nozzle exit. Mean and fluctuating velocity components are measured using stereo particle image velocimetry (SPIV). Simultaneous laser-induced fluorescence (LIF) imaging of OH and CH2O provides insights into the distribution of these intermediate species in partially-premixed DME/air flames. OH LIF imaging is also combined with SPIV to investigatemore » the strain rate field across the reaction zone.« less

Authors:
ORCiD logo [1];  [2];  [3];  [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  2. Univ. of Notre Dame, Notre Dame, IN (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1356833
Alternate Identifier(s):
OSTI ID: 1419136
Report Number(s):
SAND-2017-3019J
Journal ID: ISSN 0010-2180; PII: S0010218017300573
Grant/Contract Number:  
AC04-94AL85000; AC04-94-AL85000; FC08NA28614
Resource Type:
Accepted Manuscript
Journal Name:
Combustion and Flame
Additional Journal Information:
Journal Volume: 180; Journal Issue: C; Journal ID: ISSN 0010-2180
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; DME; turbulent jet flames; PIV; OH LIF; CH2O LIF; TNF workshop

Citation Formats

Coriton, Bruno, Im, Seong -Kyun, Gamba, Mirko, and Frank, Jonathan H. Flow field and scalar measurements in a series of turbulent partially-premixed dimethyl ether/air jet flames. United States: N. p., 2017. Web. doi:10.1016/j.combustflame.2017.02.014.
Coriton, Bruno, Im, Seong -Kyun, Gamba, Mirko, & Frank, Jonathan H. Flow field and scalar measurements in a series of turbulent partially-premixed dimethyl ether/air jet flames. United States. https://doi.org/10.1016/j.combustflame.2017.02.014
Coriton, Bruno, Im, Seong -Kyun, Gamba, Mirko, and Frank, Jonathan H. Sun . "Flow field and scalar measurements in a series of turbulent partially-premixed dimethyl ether/air jet flames". United States. https://doi.org/10.1016/j.combustflame.2017.02.014. https://www.osti.gov/servlets/purl/1356833.
@article{osti_1356833,
title = {Flow field and scalar measurements in a series of turbulent partially-premixed dimethyl ether/air jet flames},
author = {Coriton, Bruno and Im, Seong -Kyun and Gamba, Mirko and Frank, Jonathan H.},
abstractNote = {Here, we present a series of benchmark flames consisting of six partially-premixed piloted dimethyl ether (DME)/air jet flames. These flames provide an opportunity to understand turbulence-flame interactions for oxygenated fuels and to develop predictive models for these interactions using a canonical burner geometry. The development of accurate models for DME/air flames would establish a foundation for studies of more complex oxygenated fuels. The flames are stabilized on a piloted jet burner similar to that of the partially-premixed methane/air jet flames that have been studied extensively within the context of the TNF Workshop. This series of six jet flames spans jet exit Reynolds numbers, ReD, from 29,300 to 73,300 and stoichiometric mixture fractions, ξst, from 0.35 to 0.60. Flame conditions range from very low probability of localized extinction to a high probability of localized extinction and subsequent re-ignition. Measurements in the flames are compared at downstream locations from 5 to 25 diameters above the nozzle exit. Mean and fluctuating velocity components are measured using stereo particle image velocimetry (SPIV). Simultaneous laser-induced fluorescence (LIF) imaging of OH and CH2O provides insights into the distribution of these intermediate species in partially-premixed DME/air flames. OH LIF imaging is also combined with SPIV to investigate the strain rate field across the reaction zone.},
doi = {10.1016/j.combustflame.2017.02.014},
journal = {Combustion and Flame},
number = C,
volume = 180,
place = {United States},
year = {Sun Mar 12 00:00:00 EST 2017},
month = {Sun Mar 12 00:00:00 EST 2017}
}

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Cited by: 11 works
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