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A posteriori assessment of assumptions used in the modeling of dense reactive granular flows

Lathouwers, D. and Bellan, J. (2002) A posteriori assessment of assumptions used in the modeling of dense reactive granular flows. Combustion and Flame, 131 (3). pp. 353-356. ISSN 0010-2180.

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To describe complex granular flow in fluidized bed reactors, Lathouwers and Bellan [1] have developed a validated fundamental model accounting for the different history of the two particle classes represented by the sand (subscript s) and biomass (subscript b), and for the interaction between gas and particles. The addition of a heat transfer model and of the validated kinetic scheme of Miller and Bellan [2] by Lathouwers and Bellan [3] warrants a re-evaluation of the assumptions used to derive the hydrodynamic model. Specifically, here we assess the hypothesis that the relative velocity between particles is small in the context of calculating the granular transport properties, the assumption that the effect of the surrounding gas on the granular stress tensor and granular conductivity is negligible, and we also evaluate the importance to the heat-transfer correction factor because of mass blowing from the particles.

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Additional Information:© 2002 The Combustion Institute. Published by Elsevier Inc. Received 3 July 2001, Revised 5 June 2002, Accepted 17 June 2002, Available online 14 November 2002. This research was conducted at the Jet Propulsion Laboratory (JPL), California Institute of Technology, and sponsored by the U.S. Department of Energy (DOE), through an interagency agreement with the National Aeronautics and Space Administration. Neil Rossmeissel (DOE Headquarters) and D. Hooker (DOE Golden Center) served as contract monitors. Computational resources were provided by the supercomputing facility at JPL.
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Department of Energy (DOE)UNSPECIFIED
Record Number:CaltechAUTHORS:20171019-104830532
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Official Citation:D Lathouwers, J Bellan, A posteriori assessment of assumptions used in the modeling of dense reactive granular flows, In Combustion and Flame, Volume 131, Issue 3, 2002, Pages 353-356, ISSN 0010-2180, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82492
Deposited By: Tony Diaz
Deposited On:19 Oct 2017 17:56
Last Modified:19 Oct 2017 17:56

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