Non-Newtonian natural convection flow along an isothermal horizontal circular cylinder using modified power-law model

Bhowmick, Sidhartha, Molla, Md. Mamun, & Saha, Suvash (2013) Non-Newtonian natural convection flow along an isothermal horizontal circular cylinder using modified power-law model. American Journal of Fluid Dynamics, 3(2), pp. 20-30.

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Abstract

Laminar two-dimensional natural convection boundary-layer flow of non-Newtonian fluids along an isothermal horizontal circular cylinder has been studied using a modified power-law viscosity model. In this model, there are no unrealistic limits of zero or infinite viscosity. Therefore, the boundary-layer equations can be solved numerically by using marching order implicit finite difference method with double sweep technique. Numerical results are presented for the case of shear-thinning as well as shear thickening fluids in terms of the fluid velocity and temperature distributions, shear stresses and rate of heat transfer in terms of the local skin-friction and local Nusselt number respectively.

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ID Code: 59191
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Non-Newtonian, Power-law, Shear-thinning, Shear-thickening, Finite Difference
DOI: 10.5923/j.ajfd.20130302.02
ISSN: 2168-4707
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > NUMERICAL AND COMPUTATIONAL MATHEMATICS (010300) > Numerical Solution of Differential and Integral Equations (010302)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
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 2013 Scientific & Academic Publishing Co.
Deposited On: 19 Apr 2013 01:02
Last Modified: 27 Sep 2013 09:36

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