CFD–DEM simulation of pneumatic conveying in a horizontal channel

2019 ◽  
Vol 118 ◽  
pp. 64-74 ◽  
Author(s):  
Hemin Zhao ◽  
Yongzhi Zhao
Keyword(s):  
Horizontal Channel ◽  
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

CFD-DEM Simulation of Large-Scale Dilute-Phase Pneumatic Conveying System

2019 ◽  
Vol 59 (9) ◽  
pp. 4150-4160 ◽  
Author(s):  
Shibo Kuang ◽  
Ke Li ◽  
Aibing Yu
Keyword(s):  
Large Scale ◽  
Pneumatic Conveying ◽  
Dem Simulation ◽  
Conveying System

Influence of Fluidizing Velocity on Fluidized Powder Conveying in a Horizontal Rectangular Channel

2011 ◽  
Author(s):  
Koichiro Ogata ◽  
Tomoya Furukawa ◽  
Yusuke Yamamoto
Keyword(s):  
Particle Density ◽  
Rectangular Channel ◽  
Porous Membrane ◽  
Horizontal Channel ◽  
Solid Loading ◽  
Pneumatic Conveying ◽  
Bed Height ◽  
Loading Ratio ◽  
Minimum Fluidizing Velocity ◽  
Conveying System

This study experimentally investigated the high dense pneumatic conveying of glass beads in a horizontal rectangular channel using the fluidizing air. The powder used belongs to Geldart A particle, where the mean diameter is 53 μm, the particle density is 2523kg/m3 and the minimum fluidizing velocity is 4.329mm/s. The fluidized powder conveying system consists of a powder supply hopper, a horizontal rectangular channel at the side of hopper and a receiving tank. The powder was fluidized by air through the porous membrane at the bottom of hopper and horizontal channel. Then, this system could be transported the fluidized powder toward the horizontal direction. In this study, the mass of transported powder, the bed height of powder in a hopper and the supply air pressure were measured when the fluidizing velocities at the bottom of hopper and horizontal channel were changed. The mass of transported powder with the fluidizing air to the bottom of hopper multiplied rapidly when the fluidizing velocity at the bottom of horizontal channel was larger than the minimum fluidizing velocity. Therefore, the fluidizing air at the bottom of hopper and horizontal channel was important to obtain smooth powder conveying on this system. Also, the mass flow rate of powder and the solid loading ratio were estimated from the mass of transported powder against the elapsed time. As the result, the solid loading ratio has taken a one peak when the fluidizing velocity at the bottom of channel was larger than the minimum fluidizing velocity. It was found from the analyzed solid loading ratio that the high dense powder conveying was possible in this system.

CFD-DEM simulation of pneumatic conveying in a horizontal pipe

2020 ◽  
Vol 373 ◽  
pp. 58-72
Author(s):  
Hemin Zhao ◽  
Yongzhi Zhao
Keyword(s):  
Pneumatic Conveying ◽  
Horizontal Pipe ◽  
Dem Simulation

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

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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