Comparison of three types of swirling generators in coarse particle pneumatic conveying using CFD-DEM simulation

2016 ◽  
Vol 301 ◽  
pp. 1309-1320 ◽  
Author(s):  
Jia-wei Zhou ◽  
Chang-long Du ◽  
Song-yong Liu ◽  
Yu Liu
Keyword(s):  
Coarse Particle ◽  
Pneumatic Conveying ◽  
Dem Simulation

DEM simulation of particle attrition in dilute-phase pneumatic conveying

2010 ◽  
Vol 13 (2) ◽  
pp. 175-181 ◽  
Author(s):  
Tamir Brosh ◽  
Haim Kalman ◽  
Avi Levy
Keyword(s):  
Pneumatic Conveying ◽  
Dem Simulation ◽  
Particle Attrition

Numerical study of slug characteristics for coarse particle dense phase pneumatic conveying

2021 ◽  
Author(s):  
Jiawei Zhou ◽  
Linjian Shangguan ◽  
Kuidong Gao ◽  
Yanhua Wang ◽  
Yongxing Hao
Keyword(s):  
Numerical Study ◽  
Coarse Particle ◽  
Pneumatic Conveying ◽  
Dense Phase

CFD–DEM simulation of the pneumatic conveying of fine particles through a horizontal slit

Particuology ◽  
2014 ◽  
Vol 16 ◽  
pp. 196-205 ◽  
Author(s):  
Fubao Zhou ◽  
Shengyong Hu ◽  
Yingke Liu ◽  
Chun Liu ◽  
Tongqiang Xia
Keyword(s):  
Fine Particles ◽  
Pneumatic Conveying ◽  
Dem Simulation

scholarly journals Coupled CFD-DEM Simulation of Seed Flow in an Air Seeder Distributor Tube

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1597
Author(s):  
Leno Guzman ◽  
Ying Chen ◽  
Hubert Landry
Keyword(s):  
Contact Force ◽  
Horizontal Tube ◽  
Solid Loading ◽  
Discrete Element Modeling ◽  
Pneumatic Conveying ◽  
Dynamic Features ◽  
Air Velocity ◽  
Dem Simulation ◽  
Field Peas ◽  
Loading Ratio

Air seeding equipment consists of various machine components that rely on pneumatic conveying of seeds (granular material) for its operation. However, studying air seeder dynamic features in detail is difficult through experimental measurements. A simulation was performed to study seed motion in a horizontal tube section of an air seeder distributor system. The simulation incorporated two-way coupling between discrete element modeling (DEM) and computational fluid dynamics (CFD). Simulated particles were assigned material properties corresponding to field peas. Air velocity was assigned values of 10, 15, 20, and 25 m/s. The solid loading ratio (SLR) in this study included values between 0.5 and 3 to describe typical seed metering rates used in air seeding. The different pneumatic conveying conditions were studied to determine their overall effect on the average seed velocity and seed contact force. The simulation was validated through the comparison of average seed velocity data from the literature and current pneumatic conveying theory. The effect of SLR on the average seed velocity was found to be not significant for the simulated SLR values. The CFD-DEM simulation was able to capture seed collisions between seeds and the surrounding boundaries. The seed contact force increased with the air velocity, and the number of seed collisions increased with the SLR.

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