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.
- Fluids Engineering Division
Numerical Simulation and Modelling of the Forces Acting on Single and Multiple Non-Spherical Particles
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Ouchene, R, Chadil, A, Fede, P, Khalij, M, Tanière, A, Vincent, S, Estivalezès, J, & Arcen, B. "Numerical Simulation and Modelling of the Forces Acting on Single and Multiple Non-Spherical Particles." Proceedings of the ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. 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. V002T34A001. ASME. https://doi.org/10.1115/FEDSM2014-22244
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