DEM analysis of the granular flow in the static mixers
2016
Pezo, Milada (Institute of Nuclear Sciences Vinča, Belgrade (Serbia). Laboratory for Thermal Engineering and Energy) | Pezo, Lato (Institute of General and Physical Chemistry, Belgrade (Serbia)) | Čolović, Radmilo (Institute of Food Technology, Novi Sad (Serbia)) | Vukmirović, Đuro (Institute of Food Technology, Novi Sad (Serbia)) | Šuput, Danijela (Faculty of Technology, Novi Sad (Serbia)) | Stanojlović, Sanja (Institute of General and Physical Chemistry, Begrade (Serbia)) | Kosanić, Nenad (Faculty of Mechanical Engineering, Belgrade (Serbia))
Static mixer is used for premixing action before the main mixing process, for significant reduction of mixing time and energy consumption. In this article, the novel numerical approach called Discrete Element Method is used for modeling of granular flow in multiple static mixer applications, while the Computational Fluid Dynamic method was chosen for fluid flow modeling. The main aim of this article is to predict the behaviour of granules being gravitationally transported in different mixer configuration and to choose the best configuration of the mixer taking into account the total particle path, the number of mixing elements and the quality of the obtained mixture. The results of the numerical simulations in the static mixers were compared to experimental results, the mixing quality is examined by relative standard deviation criterion. The effects of the mixer type and the number of mixing elements on mixing process were studied using analysis of variance (ANOVA).
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