Titel: Eliminating anomalies of CFD model results of the powder coating process by refining aerodynamic flow-particle interaction and by introducing a dynamic particle charging model
Autor/-in: Boiger, Gernot Kurt
Erschienen in: Journal of Applied Mechanical Engineering
Tagungsband: Scientific tracks & abstracts : day 1
Band(Heft): 2018
Heft: 7
Angaben zur Konferenz: 3rd International Conference on Fluid Dynamics & Aerodynamics, Berlin, 25-26 October 2018
Verlag / Hrsg. Institution: conferenceseries.com
Verlag / Hrsg. Institution: London
Erscheinungsdatum: Okt-2018
Lizenz (gemäss Verlagsvertrag): Lizenz gemäss Verlagsvertrag
Art der Begutachtung: Peer review (Abstract)
Sprache: Englisch
Schlagwörter: Powder coating; OpenFoam; Simulation; CFD; RAS; Algorithm
Fachgebiet (DDC): 530: Physik
Zusammenfassung: A computational fluid dynamic model of the powder coating process has been developed using OpenFoam®. It considers particle-dynamic-, aerodynamic-, electro-static- and gravitational effects. While being fully functional, the Eulerian-LaGrangian model has in some cases shown anomalies, yielding coating predictions, which were not observed in comparable experiments. In order to analyse and amend the problem, the underlying Reynolds Average Stress (RAS) turbulence modelling approach was (i) re-evaluated, compared to (ii) Direct Numerical Simulation (DNS) and (iii) Large Eddie Simulation (LES) flow modelling methods, (iv) improved to account for turbulence impact on flow-particle interaction and (v) extended by a dynamic particle charging algorithm. The effects of the said model improvements were investigated and model-results were compared to measurements of experimentally obtained coating thickness values. It can be shown that the modified simulation model yields a much higher level of correspondence to experiments than previous versions.
Departement: School of Engineering
Organisationseinheit: Institute of Computational Physics (ICP)
Publikationstyp: Konferenz: Sonstiges
DOI: 10.4172/2168-9873-C1-017
ISSN: 2168-9873
URI: https://digitalcollection.zhaw.ch/handle/11475/14445
Enthalten in den Sammlungen:Publikationen School of Engineering

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