Experimental and computational study of pressure drop and void fraction in a bubbling fluidized bed

Autor:	C. K. Jayarathna, B. M. Halvorsen
Rok vydání:	2011
Předmět:	Pressure drop Materials science business.industry Bubble Mechanics Computational fluid dynamics Physics::Fluid Dynamics Fluidized bed Particle-size distribution Fluent Fluidization business Porosity Simulation
Zdroj:	Computational Methods in Multiphase Flow VI.
ISSN:	1743-3533 1746-4471
DOI:	10.2495/mpf110151
Popis:	The aim of this work is to study flow behaviour in a fluidized bed with different mixtures of particles. Mathematical simulation is an alternative way to study the fluidization behaviour. Experiments are performed in a cylindrical bed with a uniform air distribution. Spherical glass particles with different mixtures of particles are used in the experiments. The pressure and void fraction variations are observed for two different powders and mixtures of the powders. The commercial CFD code Fluent 6.3 is used for the corresponding simulations. Eulerian-Eulerian model are used to simulate a multiphase bubbling fluidized bed. The influence of particle size distribution on the bubble size, pressure and void fraction variation along the bed has been investigated computationally. The computational results are compared to the experimental data and the discrepancies are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::de0af6ee1960f47c30cde37e505b444f https://doi.org/10.2495/mpf110151 Zobrazit plný text záznamu