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Abstract
Dilute horizontal pneumatic conveying has been the subject of this experimental and numerical study. Experiments were performed utilising a 6.5 m long, 0.075 m diameter horizontal pipe in conjunction with a laser-Doppler anemometry (LDA) system. Spherical glass beads with three different sizes 0.8–1 mm, 1.5 mm, and 2 mm were used. Simulations were carried out using the commercial discrete element method (DEM) software, EDEM, coupled with the computational fluid dynamics (CFD) package, FLUENT. Experimental results illustrated that, for mass solid loading ratios (SLRs) ranging from 2.3 to 3.5, the higher the particle diameter and solid loading ratio, the lower the particle velocity. From the simulation investigations it was concluded that the inclusion of the Magnus lift force had a crucial influence, with observed particle distributions in the upper part of the conveying line reproducible in the simulation only by implementing the Magnus lift force terms in the model equations.
Acknowledgments
The authors wish to thank DEM-Solutions Limited for their assistance with this work. They also express their gratitude for the advice and time given to them by Professor Don McGlinchey, Professor Ugur Tűzűn and Jean Baptiste Richon.
Notes
Article presented at CHoPS 2012—7th International Conference for Conveying and Handling of Particulate Solids, Friedrichshafen, Germany, September 10–13, 2012.
Color versions of one or more of the figures in the article can be found online at www.tandfonline.com/upst.