Discrete Element Method Simulation and Experimental Validation of Pattern Development in a Rotating Drum Mixer

被引：13
作者：
Barczi, Tomas [1 ]
Kohout, Martin [1 ]
Kozakovic, Martin [2 ]
Havlica, Jaromir [2 ,3 ]
Ratnayake, Chandana [4 ,5 ]
机构：
[1] Univ Chem & Technol Prague, Tech 5, Prague 16628, Czech Republic
[2] Univ Jan Evangelista Purkinje, Ceske Mladeze 8, Ustinad Labem 40096, Czech Republic
[3] Czech Acad Sci, Inst Chem Proc Fundamentals, Rozvojova 2-135, Prague 16502, Czech Republic
[4] Tel Tek, Kjolnes Ring 30, N-3918 Porsgrunn, Norway
[5] Univ Coll Southeast Norway, Kjolnes Ring 56, N-3901 Porsgrunn, Norway
来源：
CHEMICAL ENGINEERING & TECHNOLOGY | 2018年 / 41卷 / 08期
关键词：
Discrete element method; Granular mixing; Pattern formation; Rotating drum mixer; Segregation; VERTICAL BLADED MIXER; AXIAL SEGREGATION; GRANULAR SEGREGATION; TRANSITION; CYLINDER; FLOW; DEM;
D O I：
10.1002/ceat.201700607
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The handling and processing of powders and granular materials can be crucial for the quality of a final product. Therefore, a detailed description and analysis of granular flow phenomena from first principles is very valuable. In the present study, simulations of granular mixing and segregation of binary-sized mixtures using a discrete element method were performed for horizontal rotating drum mixers. Numerical results were compared with experimental measurements and significant agreement between both approaches was found. The development of specific flow patterns was observed. The formation of these complex spatiotemporal patterns is influenced by the size of the mixer, the aspect ratio of length to diameter, the rotational speed of the drum, and the initial distribution of the particles.
引用
收藏
页码：1524 / 1530
页数：7
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