Title: Models, algorithms and validation for opensource DEM and CFD-DEM

Authors: Christoph Kloss; Christoph Goniva; Alice Hager; Stefan Amberger; Stefan Pirker

Addresses: All CD-Laboratory on Particulate Flow Modelling, JKU Linz, Altenbergerstr. 69 4040 Linz, Linz, Austria ' All CD-Laboratory on Particulate Flow Modelling, JKU Linz, Altenbergerstr. 69 4040 Linz, Linz, Austria ' All CD-Laboratory on Particulate Flow Modelling, JKU Linz, Altenbergerstr. 69 4040 Linz, Linz, Austria ' All CD-Laboratory on Particulate Flow Modelling, JKU Linz, Altenbergerstr. 69 4040 Linz, Linz, Austria ' All CD-Laboratory on Particulate Flow Modelling, JKU Linz, Altenbergerstr. 69 4040 Linz, Linz, Austria

Abstract: We present a multi-purpose CFD-DEM framework to simulate coupled fluid-granular systems. The motion of the particles is resolved by means of the Discrete Element Method (DEM), and the Computational Fluid Dynamics (CFD) method is used to calculate the interstitial fluid flow. We first give a short overview over the DEM and CFD-DEM codes and implementations, followed by elaborating on the numerical schemes and implementation of the CFD-DEM coupling approach, which comprises two fundamentally different approaches, the unresolved CFD-DEM and the resolved CFD-DEM using an Immersed Boundary (IB) method. Both the DEM and the CFD-DEM approach are successfully tested against analytics as well as experimental data.

Keywords: DEM; discrete element method; CFD-DEM; computational fluid dynamics; granular flow; particulate flow; open source.

DOI: 10.1504/PCFD.2012.047457

Progress in Computational Fluid Dynamics, An International Journal, 2012 Vol.12 No.2/3, pp.140 - 152

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 21 Jun 2012 *

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