FEM simulation of particle flow and convective mixing in a cylindrical bladed mixer

作者: L Bai , QJ Zheng , AB Yu , None

DOI: 10.1016/J.POWTEC.2017.03.018

关键词: ParticleFinite element methodConvective mixingGranular materialPhysicsMixing (physics)Flow (psychology)Classical mechanicsPercolationMechanicsDiffusion (business)

摘要: Abstract The continuum approach of the Eulerian finite element method (FEM) is used to investigate complex granular flow and mixing in a cylindrical bladed mixer (CBM). verified by comparing various features solids reproduced FEM, such as formation heaps, recirculating around blades spatial distributions velocities, with those from DEM. A convective model based on FEM proposed describe evolution pattern well index. It shown that results can agree However, due lack physical law particle diffusion random walk percolation, simulated index only qualitative implication at present. While much work will be needed future, allows investigation general behaviours large-scale mixers serve sound basis for ultimately establishing predictive capability mixing.

参考文章(37)
Qijun Zheng, Aibing Yu, Why Have Continuum Theories Previously Failed to Describe Sandpile Formation Physical Review Letters. ,vol. 113, pp. 068001- ,(2014) , 10.1103/PHYSREVLETT.113.068001
G Rohana Chandratilleke, YC Zhou, AB Yu, John Bridgwater, None, Effect of Blade Speed on Granular Flow and Mixing in a Cylindrical Mixer Industrial & Engineering Chemistry Research. ,vol. 49, pp. 5467- 5478 ,(2010) , 10.1021/IE901581T
H. Musha, K. Dong, G. R. Chandratilleke, J. Bridgwater, A. B. Yu, Mixing behaviour of cohesive and non-cohesive particle mixtures in a ribbon mixer POWDERS AND GRAINS 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. ,vol. 1542, pp. 731- 734 ,(2013) , 10.1063/1.4812035
Akke S. J. Suiker, Norman A. Fleck, Frictional Collapse of Granular Assemblies Journal of Applied Mechanics. ,vol. 71, pp. 350- 358 ,(2004) , 10.1115/1.1753266
Xinxin Ren, Ji Xu, Huabiao Qi, Lijie Cui, Wei Ge, Jinghai Li, GPU-based discrete element simulation on a tote blender for performance improvement Powder Technology. ,vol. 239, pp. 348- 357 ,(2013) , 10.1016/J.POWTEC.2013.02.019
PY Liu, RY Yang, AB Yu, None, DEM study of the transverse mixing of wet particles in rotating drums Chemical Engineering Science. ,vol. 86, pp. 99- 107 ,(2013) , 10.1016/J.CES.2012.06.015
X. Hua, J. Curtis, B. Hancock, W. Ketterhagen, C. Wassgren, The kinematics of non-cohesive, sphero-cylindrical particles in a low-speed, vertical axis mixer Chemical Engineering Science. ,vol. 101, pp. 144- 164 ,(2013) , 10.1016/J.CES.2013.05.063
YC Zhou, AB Yu, RL Stewart, J Bridgwater, None, Microdynamic analysis of the particle flow in a cylindrical bladed mixer Chemical Engineering Science. ,vol. 59, pp. 1343- 1364 ,(2004) , 10.1016/J.CES.2003.12.023
G Rohana Chandratilleke, AB Yu, RL Stewart, John Bridgwater, None, Effects of blade rake angle and gap on particle mixing in a cylindrical mixer Powder Technology. ,vol. 193, pp. 303- 311 ,(2009) , 10.1016/J.POWTEC.2009.03.007
RY Yang, RP Zou, AB Yu, None, Microdynamic analysis of particle flow in a horizontal rotating drum Powder Technology. ,vol. 130, pp. 138- 146 ,(2003) , 10.1016/S0032-5910(02)00257-7