Sacomano Filho, F. L. ; Kadavelil, J. ; Staufer, M. ; Sadiki, A. ; Janicka, J. (2019)
Analysis of LES-based combustion models applied to an acetone turbulent spray flame.
In: Combustion Science and Technology, 191 (1)
doi: 10.1080/00102202.2018.1452404
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Two different combustion models are analyzed for the prediction of an acetone turbulent diluted spray flame. Simulations are conducted in the Large Eddy Simulation (LES) framework, coupled with the Flamelet Generated Manifold (FGM) chemistry reduction method. To represent the polydispersed spray the Eulerian-Lagrangian specification is applied. Both combustion models consist of the Artificially Thickened Flame (ATF) and the presumed PDF approach. Effects of the evaporative cooling and the presence of droplets into the combustion modeling are accounted for. Results achieved with both models are validated against experimental data. These consist in statistical data of droplets velocities, liquid volumetric flux, a characteristic diameter, and temperature. A general good agreement with experimental data is observed. Analysis of simulations results allow deeper interpretation of additional flame features, for instance the double flame structure. As an outcome, the concept of the burning potential is introduced in this paper to assist the interpretation of the underlying mechanisms to the occurrence of different flame modes.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Sacomano Filho, F. L. ; Kadavelil, J. ; Staufer, M. ; Sadiki, A. ; Janicka, J. |
| Art des Eintrags: | Bibliographie |
| Titel: | Analysis of LES-based combustion models applied to an acetone turbulent spray flame |
| Sprache: | Englisch |
| Publikationsjahr: | 2019 |
| Verlag: | Taylor & Francis Inc |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Combustion Science and Technology |
| Jahrgang/Volume einer Zeitschrift: | 191 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1080/00102202.2018.1452404 |
| Kurzbeschreibung (Abstract): | Two different combustion models are analyzed for the prediction of an acetone turbulent diluted spray flame. Simulations are conducted in the Large Eddy Simulation (LES) framework, coupled with the Flamelet Generated Manifold (FGM) chemistry reduction method. To represent the polydispersed spray the Eulerian-Lagrangian specification is applied. Both combustion models consist of the Artificially Thickened Flame (ATF) and the presumed PDF approach. Effects of the evaporative cooling and the presence of droplets into the combustion modeling are accounted for. Results achieved with both models are validated against experimental data. These consist in statistical data of droplets velocities, liquid volumetric flux, a characteristic diameter, and temperature. A general good agreement with experimental data is observed. Analysis of simulations results allow deeper interpretation of additional flame features, for instance the double flame structure. As an outcome, the concept of the burning potential is introduced in this paper to assist the interpretation of the underlying mechanisms to the occurrence of different flame modes. |
| Freie Schlagworte: | flamelet generated manifold; large eddy simulation; presumed pdf; thickened flame; Turbulent spray combustion |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Energie- und Kraftwerkstechnik (EKT) |
| Hinterlegungsdatum: | 27 Mär 2019 06:19 |
| Letzte Änderung: | 27 Mär 2019 06:19 |
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