Mixed convection heat transfer from a heated circular cylinder

Authors

  • H Laidoudi Laboratoire des Sciences et Ingénierie Maritime (LSIM), Faculté de Génie Mécanique, USTO-MB, BP 1505, El-Menaouer, Oran, 31000, Algérie
  • M Bouzit Laboratoire des Sciences et Ingénierie Maritime (LSIM), Faculté de Génie Mécanique, USTO-MB, BP 1505, El-Menaouer, Oran, 31000, Algérie

DOI:

https://doi.org/10.3329/bjsir.v54i1.40734

Keywords:

Drag coefficient; Triangular arrangement; Mixed convection; Steady flow; Nusselt number

Abstract

This paper performs the effects of thermal buoyancy and the triangular arrangement of circular cylinders on fluid flow and heat transfer within a horizontal channel, the governing equations involving continuity; momentum and energy are solved in two-dimensional, laminar and steady flow regime. The average Nusselt number and drag coefficient are computed for the range of these conditions: Ri = 0 to 2 at fixed value of Pr = 1, Reynolds number Re = 30 and geometrical configurations (blockage ratio of β = 0.1). In order to observe the flow structure and temperature field under the gradual effect of thermal buoyancy, the streamlines and isotherm contours are illustrated. It is found that, a gradual increase in the value of buoyancy strength creates an asymmetrical flow around the cylinders. Interesting variations of drag coefficient and average Nusselt number are plotted with respect to Richardson number for each cylinder.

Bangladesh J. Sci. Ind. Res.54(1), 83-88, 2019

Downloads

Download data is not yet available.
Abstract
31
PDF
29

Downloads

Published

2019-03-25

How to Cite

Laidoudi, H., & Bouzit, M. (2019). Mixed convection heat transfer from a heated circular cylinder. Bangladesh Journal of Scientific and Industrial Research, 54(1), 83–88. https://doi.org/10.3329/bjsir.v54i1.40734

Issue

Vol. 54 No. 1 (2019)

Section

Articles

License

Bangladesh Council of Scientific and Industrial Research (BCSIR) holds the copyright to all contents published in Bangladesh Journal of Scientific and Industrial Research (BJSIR). A copyright transfer form should be signed by the author(s) and be returned to BJSIR.

The entire contents of the BJSIR are protected under Bangladesh Council of Scientific and Industrial Research (BCSIR) copyrights.

Creative Commons Licence
BJSIR is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC) Creative Commons Attribution-NonCommercial 4.0 International License which allows others remix, tweak, and build upon the articles non-commercially, and although their new works must also acknowledge and be non-commercial, they don’t have to license their derivative works on the same terms.