Numerical simulation and modelling of the forces acting on single and multiple non-spherical particles

Abstract : The paper deals with gas-solid turbulent flows carrying non-spherical particles. The main objective of the present paper is to compute the hydrodynamics forces on non-spherical particles as a function of the particle orientation, for different particle shapes and a large range of particle Reynolds number. Two Direct Numerical Simulations at the scale of the particle are used, i.e. a body-fitted approach and a viscous penalty approach, in the case of a uniform flow with a single ellipsoidal particle. Results are compared with several correlations from the literature and a new proposal for the drag coefficient is given. The study is then extended to the case of a lattice of non-spherical particles to measure the pressure drop and to connect it with the drag coefficient.
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Communication dans un congrès
ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting and 11th International Conference on Nanochannels, Microchannels, and Minichannels, Chicago, USA, 3-7 août 2014., Aug 2014, Chicago, IL, United States. Volume 2, Fora: Cavitation and Multiphase Flow; Fluid Measurements and Instrumentation; Microfluidics; Multiphase Flows: Work in Progress; Fluid-Particle Interactions in Turbulence Chicago, Illinois, USA, August 3–7, 2014 (978-0-7918-4626-1), pp.FEDSM2014-22244, ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels 〈10.1115/FEDSM2014-22244〉
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https://hal.univ-lorraine.fr/hal-01444789
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Soumis le : mardi 24 janvier 2017 - 12:33:39
Dernière modification le : jeudi 15 novembre 2018 - 08:38:02

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Rafik Ouchene, Amine Chadil, Pascal Fede, Mohammed Khalij, Anne Tanière, et al.. Numerical simulation and modelling of the forces acting on single and multiple non-spherical particles. ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting and 11th International Conference on Nanochannels, Microchannels, and Minichannels, Chicago, USA, 3-7 août 2014., Aug 2014, Chicago, IL, United States. Volume 2, Fora: Cavitation and Multiphase Flow; Fluid Measurements and Instrumentation; Microfluidics; Multiphase Flows: Work in Progress; Fluid-Particle Interactions in Turbulence Chicago, Illinois, USA, August 3–7, 2014 (978-0-7918-4626-1), pp.FEDSM2014-22244, ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels 〈10.1115/FEDSM2014-22244〉. 〈hal-01444789〉

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