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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/1873
Title: Non-Newtonian power-law flow across a confined triangular bluff body in a channel
Authors: Dhiman, Amit KumarK.
Kumar S.
Published in: Korean Journal of Chemical Engineering
Abstract: Wall effects on the flow of incompressible non-Newtonian power-law fluids across an equilateral triangular cylinder confined in a horizontal plane channel have been investigated for the range of conditions: Reynolds number, Re=1-40, power-law index, n=0. 4-1. 8 (covering shear-thinning, Newtonian and shear-thickening behaviors) and blockage ratio=0. 125-0. 5. Extensive numerical results on flow pattern, wake/recirculation length, individual and overall drag coefficients, variation of pressure coefficient on the surface of the triangular cylinder and so forth are reported to elucidate the combined effect of power-law index, blockage ratio and Reynolds number. The size of vortices decreases with an increase in the value of the blockage ratio and/or power-law index. For a fixed value of the Reynolds number, individual and overall drags decrease with decrease in power-law index and/or blockage ratio in steady confined flow regime. Simple correlations of wake length and drag are also obtained for the range of settings considered. © 2012 Korean Institute of Chemical Engineers, Seoul, Korea.
Citation: Korean Journal of Chemical Engineering (2013), 30(1): 33-44
URI: https://doi.org/10.1007/s11814-012-0117-x
http://repository.iitr.ac.in/handle/123456789/1873
Issue Date: 2013
Keywords: Drag
Non-Newtonian Fluids
Power-law Index
Reynolds Number
Wake Length
ISSN: 2561115
Author Scopus IDs: 8548369300
55500581400
Author Affiliations: Dhiman, A.K., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Kumar, S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Corresponding Author: Dhiman, A. K.; Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India; email: dhimuamit@rediffmail.com
Appears in Collections:Journal Publications [CH]

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