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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/1847
Title: Computations of Newtonian fluid flow around a square cylinder near an adiabatic wall at low and intermediate Reynolds numbers: Effects of cross-buoyancy mixed convection
Authors: Kumar D.
Dhiman, Amit Kumar
Published in: Numerical Heat Transfer; Part A: Applications
Abstract: The effects of cross-buoyancy mixed convection from a square cylinder in the proximity of a plane wall are studied for Reynolds number (Re) = 1–100, Richardson number (Ri) = 0–2, and gap ratio (G) = 0.25–1 at Prandtl number (Pr) = 0.7. The flow observed is steady for G = 0.25 and 0.5. The transition from a steady to a time-periodic system is observed for G = 1, and it is found at Re = 56, 60, and 74 for Ri = 0, 1, and 2, respectively. With increasing G and/or Ri, the drag coefficient and average Nusselt number increase for all Re values studied and the lift coefficient decreases with increasing Ri except at Re = 1. Maximum heat transfer augmentation is found about 89% at G = 0.5 (Re = 20, Pr = 0.7, Ri = 0) with respect to the corresponding value at G = 0.25 (Re = 20, Pr = 0.7, Ri = 0). Lastly, the correlations of drag coefficient and heat transfer have been obtained. © 2016, Taylor & Francis Group, LLC.
Citation: Numerical Heat Transfer; Part A: Applications (2016), 70(2): 162-186
URI: https://doi.org/10.1080/10407782.2016.1173445
http://repository.iitr.ac.in/handle/123456789/1847
Issue Date: 2016
Publisher: Taylor and Francis Ltd.
ISSN: 10407782
Author Scopus IDs: 57202477871
8548369300
Author Affiliations: Kumar, D., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Dhiman, A., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Corresponding Author: Dhiman, A.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: dhimuamit@rediffmail.com
Appears in Collections:Journal Publications [CH]

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