Shear thinning and shear thickening non-Newtonian confined fluid flow over rotating cylinder

Sojoudi, Atta & Saha, Suvash C. (2012) Shear thinning and shear thickening non-Newtonian confined fluid flow over rotating cylinder. American Journal of Fluid Dynamics, 2(6), pp. 117-121.

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In present work, numerical solution is performed to study the confined flow of power-law non Newtonian fluids over a rotating cylinder. The main purpose is to evaluate drag and thermal coefficients as functions of the related governing dimensionless parameters, namely, power-law index (0.5 ≤ n ≤ 1.4), dimensionless rotational velocity (0 ≤ α ≤ 6) and the Reynolds number (100 ≤ Re ≤ 500). Over the range of Reynolds number, the flow is known to be steady. Results denoted that the increment of power law index and rotational velocity increases the drag coefficient due to momentum diffusivity improvement which is responsible for low rate of heat transfer, because the thicker the boundary layer, the lower the heat transfer is implemented.

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ID Code: 57330
Item Type: Journal Article
Refereed: No
Keywords: Laminar Flow, Non-Newtonian Fluid, Rotating Cylinder, Numerical Solution
DOI: 10.5923/j.ajfd.20120206.04
ISSN: 2168-4707
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Scientific & Academic Publishing
Deposited On: 17 Feb 2013 23:17
Last Modified: 19 Feb 2013 17:38

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