DEM Modeling and Experiments on Granular Flow in Silos with Internals

V Pratap R Kasina
University of Edinburgh, UK
Civil & Environmental Engineering
Prof. Jin Y Ooi & Prof. Jian-Fei Chen
September 2011 to December 2014

The efficient handling of bulk solids in industries including food, chemical, mining and other sectors remains a challenge for the engineers in this field, due to the lack of scientific tools that provide useful insight about the performance of the system and support an optimum design of the equipment. Silos are widely used for storing and also for process operations such as blending, degassing and cooling/heating of granular bulk materials. The gravity blending of bulk solids in silos is an important process to get the desired and steady product quality, particularly in polymer industries. The blending performance of these silos depends on the flow behaviour and also on the type of the bulk solid being handled. Internals are devices that control the flow patterns inside the silo and their shape and position can influence the flow behaviour of the bulk solids. The focus of this research is to investigate the flow pattern of different bulk solids in silos with and without internals using DEM simulations and PIV experiments.



V.P.R. Kasina, J.F. Chen, J.Y. Ooi, H. Wilms, H. Schneider (2012) “DEM modelling and experiments on granular flow in silos with internals” 7th Int. Conf. Conveying and Handling of Particulate Solids, Friedrichshafen, Germany, September 2012.

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