Classification mechanism and airflow simulation of active pulsing air separation

He, Yaqun, Zhao, Yuemin, Duan, Chenlong, Wang, Haifeng and Zuo, Weiran (2009) Classification mechanism and airflow simulation of active pulsing air separation. Central South University of Technology, 40 5: 1199-1204.

Author He, Yaqun
Zhao, Yuemin
Duan, Chenlong
Wang, Haifeng
Zuo, Weiran
Title Classification mechanism and airflow simulation of active pulsing air separation
Journal name Central South University of Technology   Check publisher's open access policy
ISSN 1672-7207
1005-9784
Publication date 2009-10
Sub-type Article (original research)
Volume 40
Issue 5
Start page 1199
End page 1204
Total pages 6
Place of publication Changsha, China
Publisher Zhongnan Daxue
Language chi
Abstract Considering the difference of drag coefficients of particles moving through areas of varying Reynolds numbers, an extra-mass force acting on particles in the active pulsing air field was introduced. Models of the dynamic motion in which the particles both in Stokes and Newtonian fluids, follow as they move in the pulsing air flow were developed. And a computer numerical simulation was carried out that showed the traces of particles with different densities and diameters, but similar aerodynamic characteristics, as they moved through the turbulent flow, to modify and define the parameters of the models. The motion law of tracing spheres was studied in a laboratory active pulsing air classifier with a high-speed video camera and motion particle analyzer. The mechanism of active pulsing air classification was studied. The results show that simulation can predict the observed results with artificial tracing spheres separated by the laboratory equipment. The comparison of the simulation and laboratory experiment results show that the relative errors of velocities are less than 8% for lighter particles and less than 5% for heavier particles.
Keyword Active pulsing air
Classification
Dynamic models
Flow pattern
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
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Created: Mon, 17 Oct 2011, 15:39:38 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre