CFD-DEM model: Difference between revisions
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Revision as of 04:52, 8 April 2008
A CFD-DEM model is suitable for the modeling or simulation of fluid-solids or fluid-particles systems. In the CFD-DEM, the motion of discrete solids or particles phase is obtained by Discrete Element Method (DEM) which applies Newton's laws of motion to every particle and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by averaged Navier–Stokes equations that can be solved by the traditional Computational Fluid Dynamics (CFD). The interactions between the fluid phase and solids phase is modeled by use of Newton's third law.
References
- Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87.
- Xu BH, Yu AB. Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics. Chemical Engineering Science. 1997 Aug;52(16):2785-809.
- KW Chu, AB Yu, Numerical simulation of complex particle-fluid flows, Powder Technology, 179 (2008), pp. 104-14.
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