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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/1893
Title: Steady flow of power-law fluids across a square cylinder
Authors: Dhiman, Amit KumarK.
Chhabra R.P.
Eswaran V.
Published in: Chemical Engineering Research and Design
Abstract: The two-dimensional flow of power-law fluids over an isolated unconfined square cylinder has been investigated numerically in the range of conditions 1 ? Re ? 45 and 0.5 ? n ? 2.0. The global quantities such as wake length, drag coefficients and the detailed kinematic variables like stream function, vorticity and so on, have been calculated for the above range of conditions. In particular, the effects of Reynolds number and of the power-law index have been investigated in the steady flow regime. The shear-thinning fluid behaviour increases the drag above its Newtonian value whereas the shear-thickening behaviour reduces the drag below its Newtonian value. However, as the value of the Reynolds number is gradually increased, the role of power-law index diminishes. Similarly, the wake size is shorter in shear-thinning fluids than that in Newtonian fluids under otherwise indentical conditions. © 2006 Institution of Chemical Engineers.
Citation: Chemical Engineering Research and Design (2006), 84(0.166666666666667): 300-310
URI: https://doi.org/10.1205/cherd05017
http://repository.iitr.ac.in/handle/123456789/1893
Issue Date: 2006
Publisher: Institution of Chemical Engineers
Keywords: Drag
Momentum transfer
Non-Newtonian fluid
Square cylinder
ISSN: 2638762
Author Scopus IDs: 8548369300
56657757000
7003783046
Author Affiliations: Dhiman, A.K., Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208 016, India, Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, India
Chhabra, R.P., Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208 016, India, Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, India
Eswaran, V., Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208 016, India, Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, India
Corresponding Author: Chhabra, R.P.; Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208 016, India; email: chhabra@iitk.ac.in
Appears in Collections:Journal Publications [CH]

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