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Can I read CFD-DEM modelling of multiphase flow in dense medium cyclones on EtoBox?
CFD-DEM modelling of multiphase flow in dense medium cyclones by K.W. Chu; B. Wang; A.B. Yu; A. Vince is a Engineering article available to read on EtoBox.
What is CFD-DEM modelling of multiphase flow in dense medium cyclones about?
Dense medium cyclone (DMC) is a high-tonnage device that is widely used to upgrade run-of-mine coal in coal preparation. It is simple in design but the flow pattern within it is complex due to the size and density distributions of the feed and process medium solids, and the turbulent vortex formed. This paper presents a mathematical model to describe this flow system by means of combining Discrete Element Method (DEM) with Computational Fluid Dynamics (CFD). The DEM is used to model the motion of discrete particles by applying Newton's laws of motion. The CFD is used to model the motion of slurry medium by numerically solving the local-averaged Navier-Stokes equations facilitated with the Volume of Fluid (VOF) and Mixture multiphase flow models. The approach is shown to be able to reproduce typical flow phenomena in DMCs. The effect of medium-to-coal ratio and the so-called "surging" phenomenon are analyzed. An attempt is made to explain the observed phenomena in terms of particle-particle, particle-fluid and particle-wall interaction forces. The approach offers a convenient way to examine the flow and performance of DMC in relation to geometric, material and operational conditions
Who reads CFD-DEM modelling of multiphase flow in dense medium cyclones?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- K.W. Chu; B. Wang; A.B. Yu; A. Vince
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-5910)
- Published
- 2009
- Language
- EN
- Field
- Engineering (Physical Sciences)