Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/44846

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Title
Analysis of transient behaviour in the dense phase conveying of powders
Author/Creator
Jones, M. G.;  Williams, K. C.;  Busteed, S. S.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
With the increase in the development of CFD based codes for gas-solids flows, the viscous nature of gas-solid behaviour is becoming an increasing important parameter to determine. Generally, the assumption on the viscous behaviour of gas-solid flows is that the viscosity is only related to the interstitial gas rate of deformation rather than the overall gas-solids deformation response. This deformation response can vary from the conveying gas viscosity response for dilute gas-solid systems to apparent gas-solid viscosity behaviour for material that exhibits high air retention. (e.g. fluidised material). The apparent viscosity calculations for an alumina powder were based on the resistance force of a sphere passing vertically through the aerated alumina bed. Initial results of the drag force of the sphere found that the associated Cd of the aerated bed could vary between 0.1 and 2.0 with the aerated alumina bed exhibiting shear thinning (pseudo-plastic) viscosity behaviour.
Relation
International Symposium Reliable Flow of Particulate Solids IV (RELPOWFLO IV). Proceedings of the International Symposium Reliable Flow of Particulate Solids IV (RELPOWFLO IV) (Tromso, Norway 10-12 June, 2008) p. 472-477
Relation
http://www.relpowflo.no
Date
2008
Publisher
Telemark University College
Keyword(s)
gas-solid flows;  viscous behaviour;  deformation;  viscosity calculations
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/44846
Identifier
ISBN:9788272062896
Reviewed
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Subject
"Analysis of transient behaviour in the dense phase conveying of powders"
 
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