CFD-DEM simulations of the gas and particle dynamics in a novel prismatic spouted bed

V. Salikov, S. Antonyuk, S. Heinrich, V.S. Sutkar, N.G. Deen, J.A.M. Kuipers

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

In this investigation a prismatic spouted bed apparatus with two horizontal gas inlets was modeled by using a Discrete Element Model (DEM) coupled with Computational Fluid Dynamics (CFD), also called Discrete Particle Model (DPM). The bed hydrodynamics were characterized experimentally by means of high speed video recordings and Fast Fourier Transformation (FFT) of the measured pressure drop signal. Different operational regimes could be identified by the FFT. The simulations were performed at the gas flow rates corresponding to the minimum spouting velocity ums, to the upper end of the dense spouting domain and to the instable region at high gas velocities. The simulations predict well the expansion of the particle bed, the particle flow patterns, and characteristic pressure drop fluctuations for all studied regimes. Single peaks in the FFT power plots, characteristic to the stable dense spouting, were obtained and are in good agreement with experiments regarding the frequency of the pressure fluctuations. The irregular pressure behaviour resulting in additional peaks in the FFT spectra was predicted accurately by the DPM model. The spouted bed was characterized regarding the particle micromechanics in the apparatus regions with different particle dynamics, such as the annulus, fountain and spout.
Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Fluidized Bed Technology (CFB-11), 14-17 May 2014, Beijing, China
PublisherChemical Industry Press
Publication statusPublished - 2014
Event11th International Conference on Fluidized Bed Technology (CFB 2014) - Beijing, China
Duration: 14 May 201417 May 2014

Conference

Conference11th International Conference on Fluidized Bed Technology (CFB 2014)
CountryChina
CityBeijing
Period14/05/1417/05/14

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  • Cite this

    Salikov, V., Antonyuk, S., Heinrich, S., Sutkar, V. S., Deen, N. G., & Kuipers, J. A. M. (2014). CFD-DEM simulations of the gas and particle dynamics in a novel prismatic spouted bed. In Proceedings of the 11th International Conference on Fluidized Bed Technology (CFB-11), 14-17 May 2014, Beijing, China Chemical Industry Press.