Novel experimental phenomena of fine-particle fluidized beds
نویسندگان
چکیده
منابع مشابه
Particle Technology and Fluidization Simulation of Structural Phenomena in Mixed-Particle Fluidized Beds
A statistical mechanical simulation was developed and used to predict the macroscopic and microscopic behavior of fluidized beds. In particular, the model was used to study structural phenomena in liquid fluidized beds that contain a distribution of particle sizes and/or densities. Bed structural phenomena, such as density-based and sizebased segregation, classification, expansion, inversion, a...
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The particle pressure is the surface force that is exerted due to the motion of particles and their interactions. This paper describes measurements of the particle pressure exerted on the sidewall of a gas-fluidized bed. As long as the bed remains in a packed state, the particle pressure decreases with increasing gas velocity as progressively more of the bed is supported by fluid forces. It app...
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The expansion behavior and structural phenomena of fluid-particle systems was simulated using a method analogous to the Monte Carlo method for molecular systems. Individual particles are moved, and the resulting moves are accepted or declined based on the change in the system’s potential energy and the average kinetic energy of the system. Several fluid particle systems have been successfully p...
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Discrete particle simulations are by now well established as an effective tool to study the mechanics of complex gas-solid flows in gas-fluidized beds. In this study, a state-of-the-art discrete particle model is used to explore the role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles. We find that the particle-particle interactions, including inelastic p...
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ژورنال
عنوان ژورنال: Experimental Thermal and Fluid Science
سال: 2007
ISSN: 0894-1777
DOI: 10.1016/j.expthermflusci.2007.03.001