Time-averaged heat transfer and vortex shedding of a singular and twin heated bluff bodies in cross flow

Article

Etminan, A., Sharifian, A., Reda, E. and Harun, Z.. 2018. "Time-averaged heat transfer and vortex shedding of a singular and twin heated bluff bodies in cross flow." International Journal of Engineering and Technology(Uae). 7 (3.17 (Special Issue)), pp. 270-276. https://doi.org/10.14419/ijet.v7i3.17.25251
Article Title

Time-averaged heat transfer and vortex shedding of a
singular and twin heated bluff bodies in cross flow

ERA Journal ID212910
Article CategoryArticle
AuthorsEtminan, A. (Author), Sharifian, A. (Author), Reda, E. (Author) and Harun, Z. (Author)
Journal TitleInternational Journal of Engineering and Technology(Uae)
Journal Citation7 (3.17 (Special Issue)), pp. 270-276
Number of Pages7
Year2018
PublisherScience Publishing Corporation
Place of PublicationUnited Arab Emirates
ISSN2227-524X
2227-5258
Digital Object Identifier (DOI)https://doi.org/10.14419/ijet.v7i3.17.25251
Web Address (URL)https://www.sciencepubco.com/index.php/ijet/article/view/25251
Abstract

Flow characteristics in the onset of vortex shedding and heat transfer pattern over a single and two same-sized square prisms placed in tandem are studied numerically. All simulations are carried out for Reynolds numbers range varying from 1 to 200 and spacing between the prisms in the order of five widths of prism for in tandem configuration. The calculations are done employing a finite volume in-house computer program according to semi-implicit method for pressure linked equations-consistent (SIMPLEC) numerical procedure and nonstaggered mesh in 2-dimensional, steady/unsteady and incompressible flow regimes. The instantaneous and time-averaged streamlines as well as iso-therm pattern for different Reynolds numbers are analysed. Furthermore, the influence of Reynolds number and the onset of vortex shedding on the flow pattern are studied in detail. Three distinct patterns namely fully-attached, trailing-edge separation and leading-edge separation were observed.

Keywordsvortex shedding; laminar flow; heat transfer; bluff body; SIMPELC
ANZSRC Field of Research 2020401706. Numerical modelling and mechanical characterisation
Public Notes

Copyright © 2018 Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Byline AffiliationsMemorial University of Newfoundland, Canada
School of Mechanical and Electrical Engineering
National University of Malaysia
Institution of OriginUniversity of Southern Queensland
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