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2014•Unpublished venueRequires access

Discrete element method and its applications in fluidization

Chilou Zhou

Open publisher page 7 citations

Abstract

After 30 years of development, the discrete element method(DEM) has developed to be a kind of numerical method of particle systems widely used in process engineering. In particular, the CFD-DEM coupling method has been widely used in the researches of fluidization. The DEM models are reviewed firstly, including the basic principles of DEM model, the particle shape model, the contact force model, the non-contact force model, and the fluid force model. Then the CFD-DEM coupling methods and the applications to fluidization are introduced, including the applications in fluidized bed, pneumatic conveying, and some other fields of process engineering. Finally, the future development of DEM and CFD-DEM coupling methods are presented, hoping to promote the development of DEM and its applications in process engineering.

About this research paper

What this paper is about

After 30 years of development, the discrete element method(DEM) has developed to be a kind of numerical method of particle systems widely used in process engineering. In particular, the CFD-DEM coupling method has been widely used in the researches of fluidization. The DEM models are reviewed firstly, including the basic principles of DEM model, the particle shape model, the contact force model, the non-contact force model, and the fluid force model. Then the CFD-DEM coupling methods and the applications to fluidization are introduced, including the applications in fluidized bed, pneumatic conveying, and some other fields of process engineering. Finally, the future development of DEM and CFD-DEM coupling methods are presented, hoping to promote the development of DEM and its applications in process engineering.

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OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

After 30 years of development, the discrete element method(DEM) has developed to be a kind of numerical method of particle systems widely used in process engineering. In particular, the CFD-DEM coupling method has been widely used in the researches of fluidization. The DEM models are reviewed firstly, including the basic principles of DEM model, the particle shape model, the contact force model, the non-contact force model, and the fluid force model. Then the CFD-DEM coupling methods and the applications to fluidization are introduced, including the applications in fluidized bed, pneumatic conveying, and some other fields of process engineering. Finally, the future development of DEM and CFD-DEM coupling methods are presented, hoping to promote the development of DEM and its applications in process engineering.

Key concepts: Fluidization, Discrete element method, CFD-DEM, Coupling (piping), Computational fluid dynamics, Process (computing), Mechanical engineering, Engineering

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