Dependence of Granular Materials Homogenization on Geometrical Aspects in Commonly Used Mixers via DEM.

0469336 - ÚCHP 2020 RIV SG eng C - Konferenční příspěvek (zahraniční konf.)
Kohout, M. - Barczi, T. - Trávníčková, Tereza - Havlica, Jaromír - Ratnayake, C.
Dependence of Granular Materials Homogenization on Geometrical Aspects in Commonly Used Mixers via DEM.
Proceedings of the 7th International Conference on Discrete Element Methods. Singapore: Springer Science+Business Media, 2017 - (Li, X.; Feng, Y.; Mustoe, G.), s. 1115-1122. Springer Proceedings in Physics, Volume 188. ISBN 978-981-10-1925-8. ISSN 0930-8989. E-ISSN 1867-4941.
[International Conference on Discrete Elements Methods /7./. Dalian University of Technology, Dalian (CN), 01.08.2016-04.08.2016]
Grant CEP: GA ČR(CZ) GAP105/12/0664
Institucionální podpora: RVO:67985858
Klíčová slova: granular materials * description and analysis * simulations
Obor OECD: Chemical process engineering
http://www.springer.com/us/book/9789811019258

The manipulation (transport, mixing, segregation etc.) with powders and granular materials can be crucial for the quality of a final product. Detailed description
and analysis of granular flow phenomena from the first principles is therefore very valuable. Here, simulations of granular mixing and segregation via discrete element method(DEM) of two types of mixers are performed and compared with experimental measurements. In the horizontal rotating drum mixer segregation of spherical particles with different diameters is studied. Different steady states are observed and their stability in dependence on the period of rotation and on the size of the system is discussed. Effect of operating conditions on granular flow dynamics and process of homogenization in the industrial paddle mixer is also analyzed. Global flow patterns development can be observed in both experiments and simulations.
Trvalý link: http://hdl.handle.net/11104/0267129