CFD-DEM model: Difference between revisions
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A '''CFD-DEM model''' is suitable for the modeling or [[simulation]] of fluid-solids or fluid-particles systems. In a typical CFD-DEM model, the phase motion of [[wikt:discrete|discrete]] solids or particles is obtained by the [[Discrete Element Method]] (DEM) which applies [[Newton's laws of motion]] to every particle<ref>Cundall P. A., Strack O. D. L., (1979). Discrete numerical-model for granular assemblies. Geotechnique, 29, 47-65</ref> and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional [[Computational Fluid Dynamics]] (CFD).<ref>''e.g.'', see {{Cite journal|author=Chorin A. J.|year=1968|title=Numerical solution of the Navier-Stokes equations|journal=Mathematics of Computation|volume=22|pages=745–762}}</ref> The model is first proposed by Tsuji et al.<ref>Tsuji Y., Tanaka T., Ishida T., (1992). Lagrangian numerical-simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technology, 71, 239-250</ref><ref>Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87</ref> The interactions between the fluid phase and solids phase is better modeled according to [[Newton's third law]].<ref>{{Cite journal|author=Xu B. H. and Yu, A. B.|year=1997|title=Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics|journal=Chemical Engineering Science|volume=52|number=16|pages=2785–2809}}</ref> |
A '''CFD-DEM model''' is suitable for the modeling or [[simulation]] of fluid-solids or fluid-particles systems. In a typical CFD-DEM model, the phase motion of [[wikt:discrete|discrete]] solids or particles is obtained by the [[Discrete Element Method]] (DEM) which applies [[Newton's laws of motion]] to every particle<ref>Cundall P. A., Strack O. D. L., (1979). Discrete numerical-model for granular assemblies. Geotechnique, 29, 47-65</ref> and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional [[Computational Fluid Dynamics]] (CFD).<ref>''e.g.'', see {{Cite journal|author=Chorin A. J.|year=1968|title=Numerical solution of the Navier-Stokes equations|journal=Mathematics of Computation|volume=22|pages=745–762|doi=10.2307/2004575|doi-access=free}}</ref> The model is first proposed by Tsuji et al.<ref>Tsuji Y., Tanaka T., Ishida T., (1992). Lagrangian numerical-simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technology, 71, 239-250</ref><ref>Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87</ref> The interactions between the fluid phase and solids phase is better modeled according to [[Newton's third law]].<ref>{{Cite journal|author=Xu B. H. and Yu, A. B.|year=1997|title=Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics|journal=Chemical Engineering Science|volume=52|number=16|pages=2785–2809|doi=10.1016/s0009-2509(97)00081-x}}</ref> |
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==Software== |
==Software== |
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Open source and non-commercial software: |
Open source and non-commercial software: |
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* The open source CFD software [https://openfoam.org OpenFOAM] includes particle methods, including DEM, and solvers that couple CFD-DEM. |
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* [http://www.cfdem.com/ CFDEMcoupling] is an open source toolbox for CFD-DEM coupling. [http://www.cfdem.com/ CFDEMcoupling Website] |
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* [http://www.cfdem.com/ CFDEMcoupling (DCS Computing GmbH)] couples CFD from OpenFOAM with open source DEM software, LIGGGHTS. |
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* [https://mfix.netl.doe.gov MFiX](Open Source multiphase flow simulation package). |
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*The commercial software [[Simcenter STAR-CCM+]] is an integrated multiphysics solution capable of CFD-DEM coupling involving single or multiphase flow, chemical reactions, electromagnetism and heat transfer |
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==Parallelization== |
==Parallelization== |
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Latest revision as of 17:48, 24 July 2022
A CFD-DEM model is suitable for the modeling or simulation of fluid-solids or fluid-particles systems. In a typical CFD-DEM model, the phase motion of discrete solids or particles is obtained by the Discrete Element Method (DEM) which applies Newton's laws of motion to every particle[1] and the flow of continuum fluid is described by the local averaged Navier–Stokes equations that can be solved by the traditional Computational Fluid Dynamics (CFD).[2] The model is first proposed by Tsuji et al.[3][4] The interactions between the fluid phase and solids phase is better modeled according to Newton's third law.[5]
Software
[edit]Open source and non-commercial software:
- The open source CFD software OpenFOAM includes particle methods, including DEM, and solvers that couple CFD-DEM.
- CFDEMcoupling (DCS Computing GmbH) couples CFD from OpenFOAM with open source DEM software, LIGGGHTS.
- MFiX(Open Source multiphase flow simulation package).
- The commercial software Simcenter STAR-CCM+ is an integrated multiphysics solution capable of CFD-DEM coupling involving single or multiphase flow, chemical reactions, electromagnetism and heat transfer
Parallelization
[edit]OpenMP has been shown to be more efficient in performing coupled CFD-DEM calculations in parallel framework as compared to MPI by Amritkar et al.[6]
References
[edit]- ^ Cundall P. A., Strack O. D. L., (1979). Discrete numerical-model for granular assemblies. Geotechnique, 29, 47-65
- ^ e.g., see Chorin A. J. (1968). "Numerical solution of the Navier-Stokes equations". Mathematics of Computation. 22: 745–762. doi:10.2307/2004575.
- ^ Tsuji Y., Tanaka T., Ishida T., (1992). Lagrangian numerical-simulation of plug flow of cohesionless particles in a horizontal pipe. Powder Technology, 71, 239-250
- ^ Tsuji Y, Kawaguchi T, Tanaka T. Discrete Particle Simulation Of 2-Dimensional Fluidized-Bed. Powder Technology. 1993 Oct;77(1):79-87
- ^ Xu B. H. and Yu, A. B. (1997). "Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics". Chemical Engineering Science. 52 (16): 2785–2809. doi:10.1016/s0009-2509(97)00081-x.
- ^ Amritkar, Amit; Deb, Surya; Tafti, Danesh (2014). "Efficient parallel CFD-DEM simulations using OpenMP". Journal of Computational Physics. 256: 501. Bibcode:2014JCoPh.256..501A. doi:10.1016/j.jcp.2013.09.007.
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