LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH

This paper presents the numerical study of two-dimensional forced convection heat transfer for staggered tube banks in cross flow under incompressible, steady-state conditions. This system is solved for body-fitted coordinates using the finite volume method for flow over a bundle of cylindrical tube...

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Main Authors: Tahseen A. Tahseen, M. Ishak, M. M. Rahman
Format: Article
Language:English
Published: Universiti Malaysia Pahang 2013-06-01
Series:Journal of Mechanical Engineering and Sciences
Subjects:
Online Access:https://www.dropbox.com/s/u88k0taeq9m49i1/9_%20Tahseen%20et%20al.pdf
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spelling doaj-b41b2a836ad94cdda520050755559dec2020-11-24T21:44:51ZengUniversiti Malaysia PahangJournal of Mechanical Engineering and Sciences2289-46592231-83802013-06-014418430LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACHTahseen A. TahseenM. IshakM. M. RahmanThis paper presents the numerical study of two-dimensional forced convection heat transfer for staggered tube banks in cross flow under incompressible, steady-state conditions. This system is solved for body-fitted coordinates using the finite volume method for flow over a bundle of cylindrical tubes. A constant heat flux is imposed on the surface of the tubes as the thermal boundary condition. The type of arrangement considered is a set of staggered tubes. Ratios of longitudinal pitch to tube diameter (ST/D) of 1.25, 1.5, and 2 are considered. Reynolds numbers are varied from 25 to 250 and the Prandtl number is taken as 0.71. Velocity field vectors, temperature contours, and the local and average Nusselt numbers are analyzed in this paper. It can be seen that the predicted results are in good agreement with experimental and numerical results obtained previously. The obtained results show that the heat transfer rate increases with a reduction in the step of the longitudinal tube diameter. The local heat transfer depends strongly on the Reynolds number. The highest values are obtained at the surface opposite to the direction of flow. The heat transfer rate is insignificant in the areas of recycling.https://www.dropbox.com/s/u88k0taeq9m49i1/9_%20Tahseen%20et%20al.pdfForced convectioncylindrical tubestaggered arrangementbody-fitted coordinatesfinite volume method.
collection DOAJ
language English
format Article
sources DOAJ
author Tahseen A. Tahseen
M. Ishak
M. M. Rahman
spellingShingle Tahseen A. Tahseen
M. Ishak
M. M. Rahman
LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH
Journal of Mechanical Engineering and Sciences
Forced convection
cylindrical tube
staggered arrangement
body-fitted coordinates
finite volume method.
author_facet Tahseen A. Tahseen
M. Ishak
M. M. Rahman
author_sort Tahseen A. Tahseen
title LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH
title_short LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH
title_full LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH
title_fullStr LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH
title_full_unstemmed LAMINAR FORCED CONVECTION HEAT TRANSFER OVER STAGGERED CIRCULAR TUBE BANKS: A CFD APPROACH
title_sort laminar forced convection heat transfer over staggered circular tube banks: a cfd approach
publisher Universiti Malaysia Pahang
series Journal of Mechanical Engineering and Sciences
issn 2289-4659
2231-8380
publishDate 2013-06-01
description This paper presents the numerical study of two-dimensional forced convection heat transfer for staggered tube banks in cross flow under incompressible, steady-state conditions. This system is solved for body-fitted coordinates using the finite volume method for flow over a bundle of cylindrical tubes. A constant heat flux is imposed on the surface of the tubes as the thermal boundary condition. The type of arrangement considered is a set of staggered tubes. Ratios of longitudinal pitch to tube diameter (ST/D) of 1.25, 1.5, and 2 are considered. Reynolds numbers are varied from 25 to 250 and the Prandtl number is taken as 0.71. Velocity field vectors, temperature contours, and the local and average Nusselt numbers are analyzed in this paper. It can be seen that the predicted results are in good agreement with experimental and numerical results obtained previously. The obtained results show that the heat transfer rate increases with a reduction in the step of the longitudinal tube diameter. The local heat transfer depends strongly on the Reynolds number. The highest values are obtained at the surface opposite to the direction of flow. The heat transfer rate is insignificant in the areas of recycling.
topic Forced convection
cylindrical tube
staggered arrangement
body-fitted coordinates
finite volume method.
url https://www.dropbox.com/s/u88k0taeq9m49i1/9_%20Tahseen%20et%20al.pdf
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AT mishak laminarforcedconvectionheattransferoverstaggeredcirculartubebanksacfdapproach
AT mmrahman laminarforcedconvectionheattransferoverstaggeredcirculartubebanksacfdapproach
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