Fluidization of 1204 spheres: simulation and experiment
نویسندگان
چکیده
منابع مشابه
Fluidization of 1204 spheres: simulation and experiment
In this paper we study the fluidization of 1204 spheres at Reynolds numbers in the thousands using the method of distributed Lagrange multipliers. The results of the simulation are compared with a real experiment. This is the first direct numerical simulation of a real fluidized bed at the finite Reynolds number encountered in the applications. The simulations are processed like real experiment...
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One goal pursued there is to demonstrate that numerical experiments on fluidization can be processed in log-log plots for straight lines leading to power laws as did Richardson and Zaki 1954 for real experiments. As far as we know, we are the only group of researchers to carry out this program. There is no prior literature, in which power laws are obtained from numerical experiments. On the oth...
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The onset of surface fluidization of granular material in a vertically vibrated container, z = A cos (ωt), is studied experimentally. Recently, for a column of spheres it has been theoretically found [1] that the particles lose contact if a certain condition for the acceleration amplitude z̈ ≡ Aω/g = f(ω) holds. This result is in disagreement with other findings where the criterion z̈ = z̈crit = c...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2002
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112001006474