CFD-DEM

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CFD-DEM model is suitable for the modelling or simulation of fluid-solids or fluid-particles systems. In the CFD-DEM, the motion of discerete 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.

The direct incorporation of CFD into DPM to study the gas fluidization process so far has been attempted by Tsuji et al.^[1] ^[2]and most recently by Hoomans et al.^[3].

[edit] Notes

^ Tsuji, Y., Kawaguchi, T. and Tanaka, T. (1993) Discrete particle simulation of two-dimensional fluidized bed. Powder Technol. 77, 79-87.,
^ Tsuji, Y., Tanaka, T. and Ishida, T. (1992) Lagrangian numerical simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technol. 71, 239-250.
^ Hoomans, B. P. B., Kuipers, J. A. M., Briels, W. J. and Van Swaaij, W. P. M. (1996) Discrete particle imulation of bubble and slug formation in a two-dimensional gas-fluidised bed: a hard-sphere approach. Chem. Engng Sci. 51, 99-118.