Original title: Estimating rheological properties of suspensions formed of arbitrarily-shaped particles via CDF-Dem
Authors: Kotouč Šourek, M. ; Isoz, Martin
Document type: Papers
Conference/Event: Topical problems of fluid mechanics 2022, Praha (CZ), 20220216
Year: 2022
Language: eng
Abstract: In recent years, new methods combining computational fluid dynamics (CFD) and discrete element method (DEM) have been intensively studied. Usually, these methods are focused on simulations of spherical particles. Nevertheless, this is inadequate for a simulation of a common suspension, the rheology of which is affected by particle shapes. In this work, we leverage the capabilities of an in-house developed CFD-DEM solver to simulate suspensions formed of arbitrarily-shaped particles. Specifically, we simulate a rheological measurement to estimate the suspension viscosity. The CFD-DEM estimates are in very good agreement with available experimental data and correlations proving the new solver capabilities regarding firstprinciples-based simulations of complex non-Newtonian suspension behaviour. The practical potential of suspension simulation is illustrated in a numerical study of the washcoating process in the preparation of a catalytic filter for automotive exhaust gas after-treatment.
Keywords: CFD-DEM; HFDIB; OpenFOAM; suspension rheology
Project no.: EF15_003/0000493
Funding provider: GA MŠk
Host item entry: Topical Problems of Fluid Mechanics 2022, ISBN 978-80-87012-77-2, ISSN 2336-5781

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www2.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2022/15-TPFM2022.pdf
Original record: https://hdl.handle.net/11104/0334780

Permalink: http://www.nusl.cz/ntk/nusl-510651


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