Interfacial stress in non-Newtonian flow through packed bed
β Scribed by Suresh Kumar Patel; Subrata Kumar Majumder
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 1000 KB
- Volume
- 211
- Category
- Article
- ISSN
- 0032-5910
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β¦ Synopsis
This study investigates the pressure drop characteristics, shear stress in packed bed with shear thinning power law type non-Newtonian liquid. A mechanistic model has also been developed to analyze the pressure drop and interfacial stress in packed bed with non-Newtonian liquid by considering the loss of energy due to wettability. The Ergun's and Foscolo's equations were used for comparison with the experimental data. The Ergun equation was modified to account for the effect of flow behavior index of non-Newtonian fluid in the column. The intensity factor of shear stress and the friction factor were analyzed based on energy loss due to wettability effect of liquid on the solid surface.
π SIMILAR VOLUMES
This paper deals with the flow behaviour of Newtonian and non-Newtonian fluids flowing through packed and expanded beds. With the help of tube-bundle theory a generalized average shear-stress-shear-rate relationship is derived and found to predict the flow behaviour of power law as wel1 as non-power
## Abstract The results of measurements of velocity distributions of Newtonian and nonβNewtonian fluids flowing through porous media are described in this contribution. The porous matrix was modeled by glass beads of different diameters forming a random bead packing confined by a circular tube. The