Title: Numerical study and experimental validation of particle strand formation

Authors: Damir Kahrimanovic, Christoph Kloss, Georg Aichinger, Stefan Pirker

Addresses: Christian-Doppler Laboratory on Particulate Flow Modeling, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria. ' Christian-Doppler Laboratory on Particulate Flow Modeling, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria. ' Siemens VAI Metals Technologies GmbH & Co, I IS MT IR DR T, P.O. Box 4, Turmstrasse 44, 4031 Linz, Austria. ' Christian-Doppler Laboratory on Particulate Flow Modeling, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria

Abstract: Pneumatic conveying of spherical glass particles through a rectangular channel is studied by means of numerical simulation and compared with optical measurements. Thereby, a double-looping is placed in front of the straight channel in order to generate a particle strand at the bottom of the channel. Finally the profiles of particle velocity and volume concentration are measured by Particle Image Velocimetry (PIV). The corresponding numerical simulations are carried out with the Discrete Phase Model using the Fluent software package. Also some additional sub-models have been introduced in order to describe particle-wall collisions, particle-particle collisions and the influence of particle rotation.

Keywords: gas particle flows; discrete phase modelling; Euler–Lagrange approach; particle–wall collisions; particle–particle collisions; pneumatic conveying; horizontal channel; particle strand formation; spherical glass particles; numerical simulation; CFD; computational fluid dynamics.

DOI: 10.1504/PCFD.2009.027369

Progress in Computational Fluid Dynamics, An International Journal, 2009 Vol.9 No.6/7, pp.383 - 392

Available online: 21 Jul 2009 *

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