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Numerical Investigation of Local Heat-Release Rates and Thermo-Chemical States in Side-Wall Quenching of Laminar Methane and Dimethyl Ether Flames

Steinhausen, M.; Luo, Y.; Popp, S.; Straßacker, C.; Zirwes, T.; Kosaka, H.; Zentgraf, F.; Maas, U.; Sadiki, A.; Dreizler, A.; Hasse, C.

Abstract:
The local heat-release rate and the thermo-chemical state of laminar methane and dimethyl ether flames in a side-wall quenching configuration are analyzed. Both, detailed chemistry simulations and reduced chemistry manifolds, namely Flamelet-Generated Manifolds (FGM), Quenching Flamelet-generated Manifolds (QFM) and Reaction-Diffusion Manifolds (REDIM), are compared to experimental data of local heat-release rate imaging of the lab-scale side-wall quenching burner at Technical University of Darmstadt. To enable a direct comparison between the measurements and the numerical simulations, the measurement signals are computed in all numerical approaches. Considering experimental uncertainties, the detailed chemistry simulations show a reasonable agreement with the experimental heat-release rate. The comparison of the FGM, QFM and REDIM with the detailed simulations shows the high prediction quality of the chemistry manifolds. For the first time, the thermo-chemical state during quenching of a dimethyl ether-air flame is examined numerically. Therefore, the carbon monoxide and temperature predictions are analyzed in the vicinity of the wall. ... mehr

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Postprint §
DOI: 10.5445/IR/1000120162
Veröffentlicht am 14.05.2021
Originalveröffentlichung
DOI: 10.1007/s10494-020-00146-w
Scopus
Zitationen: 2
Web of Science
Zitationen: 3
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Thermodynamik (ITT)
Steinbuch Centre for Computing (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1386-6184, 1573-1987
KITopen-ID: 1000120162
Erschienen in Flow, turbulence and combustion
Verlag Springer Verlag
Band 106
Seiten 681–700
Vorab online veröffentlicht am 13.05.2020
Schlagwörter Flame-wall interaction, Side-wall quenching, REDIM, FGM, QFM, DME
Nachgewiesen in Dimensions
Web of Science
Scopus
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