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Pressure drop in non-Newtonian purely viscous fluid flow through porous media

✍ Scribed by Nour-Eddine Sabiri; Jacques Comiti

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
525 KB
Volume
50
Category
Article
ISSN
0009-2509

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✦ Synopsis

The flow ofnon-Newtonian purely viscous fluids through packed beds of different structures has been investigated and a model of calculation of the pressure drop is proposed. This model takes into account the structural parameters of the porous medium: the tortuosity T, the dynamic specific surface area avd and the porosity e. This model has been verified experimentally for the flow of a power-law fluid through fixed beds of spherical particles, long cylinders and very flat plates. The present investigation covers a large range of Reynolds number including creeping and inertial flow regimes.

πŸ“œ SIMILAR VOLUMES

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A criterion for stability of laminar flow of purely viscous non-Newtonian fluids is proposed and compared with the criterion of Ryan and Johnson, and Hanks. The proposed criterion is found to be in good agreement with the experimental findings given in the available literature. A generalized relatio