Aghel, Babak ; Alobaid, Falah ; Graf, Christoph ; Epple, Bernd (2024)
Efficiency analysis of the discrete element method model in gas‐fluidized beds.
In: Chemical Engineering & Technology, 47 (1)
doi: 10.1002/ceat.202200620
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The efficiency and accuracy of the Euler‐Lagrange/discrete element method model were investigated. Accordingly, the stiffness coefficient and fluid time step were changed for different particle numbers and diameters. To derive the optimum parameters for simulations, the obtained results were compared with the measurements. According to the results, the application of higher stiffness coefficients improves the simulation accuracy slightly, however, the average computing time increases exponentially. For time intervals larger than 5 ms, the results indicated that the average computation time is independent of the applied fluid time step, while the simulation accuracy decreases extremely by increasing the size of the fluid time step. Nevertheless, using time steps smaller than 5 ms leads to negligible improvements in the simulation accuracy, though to an exponential rise in the average computing time.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Aghel, Babak ; Alobaid, Falah ; Graf, Christoph ; Epple, Bernd |
| Art des Eintrags: | Bibliographie |
| Titel: | Efficiency analysis of the discrete element method model in gas‐fluidized beds |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2024 |
| Ort: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemical Engineering & Technology |
| Jahrgang/Volume einer Zeitschrift: | 47 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1002/ceat.202200620 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The efficiency and accuracy of the Euler‐Lagrange/discrete element method model were investigated. Accordingly, the stiffness coefficient and fluid time step were changed for different particle numbers and diameters. To derive the optimum parameters for simulations, the obtained results were compared with the measurements. According to the results, the application of higher stiffness coefficients improves the simulation accuracy slightly, however, the average computing time increases exponentially. For time intervals larger than 5 ms, the results indicated that the average computation time is independent of the applied fluid time step, while the simulation accuracy decreases extremely by increasing the size of the fluid time step. Nevertheless, using time steps smaller than 5 ms leads to negligible improvements in the simulation accuracy, though to an exponential rise in the average computing time. |
| Freie Schlagworte: | Discrete element method, Euler‐Lagrange model, Gas‐fluidized bed, Particle‐grid method, Stochastic collision model |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Energiesysteme und Energietechnik (EST) |
| Hinterlegungsdatum: | 22 Mai 2024 06:10 |
| Letzte Änderung: | 22 Mai 2024 09:23 |
| PPN: | 518470148 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Efficiency Analysis of the Discrete Element Method Model in Gas‐Fluidized Beds. (deposited 21 Mai 2024 13:50)
- Efficiency analysis of the discrete element method model in gas‐fluidized beds. (deposited 22 Mai 2024 06:10) [Gegenwärtig angezeigt]
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