Böttler, Hannes ; Kaddar, D. ; Karpowski, T. J. P. ; Ferraro, Federica ; Scholtissek, Arne ; Nicolai, Hendrik ; Hasse, Christian (2024)
Can flamelet manifolds capture the interactions of thermo-diffusive instabilities and turbulence in lean hydrogen flames?—An a-priori analysis.
In: International Journal of Hydrogen Energy, 56
doi: 10.1016/j.ijhydene.2023.12.193
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Flamelet-based methods are extensively used in modeling turbulent hydrocarbon flames. However, these models have yet to be established for (lean) premixed hydrogen flames. While flamelet models exist for laminar thermo-diffusively unstable hydrogen flames, for which consideration of curvature effects has resulted in improved model predictions [1], it is still unclear whether these models are directly applicable to turbulent hydrogen flames. Therefore, a detailed assessment of stretch effects on thermochemical states in a turbulent lean premixed hydrogen-air slot flame through finite-rate chemistry simulations is conducted. Strain and curvature are examined individually using a composition space model, revealing their distinct influences on thermochemical states. An a-priori analysis confirms that the previously developed tabulated manifolds fall short of capturing all turbulent flame phenomena, necessitating a novel manifold incorporating both strain and curvature variations. These results underscore the significance of these variations in developing manifold-based combustion models for turbulent lean hydrogen flames.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Böttler, Hannes ; Kaddar, D. ; Karpowski, T. J. P. ; Ferraro, Federica ; Scholtissek, Arne ; Nicolai, Hendrik ; Hasse, Christian |
| Art des Eintrags: | Bibliographie |
| Titel: | Can flamelet manifolds capture the interactions of thermo-diffusive instabilities and turbulence in lean hydrogen flames?—An a-priori analysis |
| Sprache: | Englisch |
| Publikationsjahr: | 22 Februar 2024 |
| Ort: | New York |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | International Journal of Hydrogen Energy |
| Jahrgang/Volume einer Zeitschrift: | 56 |
| DOI: | 10.1016/j.ijhydene.2023.12.193 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S036031992... |
| Kurzbeschreibung (Abstract): | Flamelet-based methods are extensively used in modeling turbulent hydrocarbon flames. However, these models have yet to be established for (lean) premixed hydrogen flames. While flamelet models exist for laminar thermo-diffusively unstable hydrogen flames, for which consideration of curvature effects has resulted in improved model predictions [1], it is still unclear whether these models are directly applicable to turbulent hydrogen flames. Therefore, a detailed assessment of stretch effects on thermochemical states in a turbulent lean premixed hydrogen-air slot flame through finite-rate chemistry simulations is conducted. Strain and curvature are examined individually using a composition space model, revealing their distinct influences on thermochemical states. An a-priori analysis confirms that the previously developed tabulated manifolds fall short of capturing all turbulent flame phenomena, necessitating a novel manifold incorporating both strain and curvature variations. These results underscore the significance of these variations in developing manifold-based combustion models for turbulent lean hydrogen flames. |
| Freie Schlagworte: | Turbulent premixed flames, Thermodiffusive instability, Hydrogen combustion, Preferential diffusion, Strain and curvature, Flamelet modeling |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Simulation reaktiver Thermo-Fluid Systeme (STFS) |
| Hinterlegungsdatum: | 16 Feb 2024 09:35 |
| Letzte Änderung: | 20 Feb 2024 06:30 |
| PPN: | 51562912X |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum