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Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams

Combined convection heat transfer and fluid flow around a circular cylinder surface placed in open-fcell aluminum foams and subjected to constant heat flux inside a rectangular, water-filled horizontal channel was numerically and experimentally studied. Two models (rectangular and trapezoidal open-c...

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Main Authors: Mahdi, Raed Abed, Mohammed, Hussein A., Munisamy, Kannan M., Saeid, Nawaf H.
Format: Article
Published: Taylor and Francis Inc. 2015
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/55157/
http://dx.doi.org/10.1080/00986445.2013.863188
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spelling my.utm.551572017-02-15T07:42:11Z http://eprints.utm.my/id/eprint/55157/ Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams Mahdi, Raed Abed Mohammed, Hussein A. Munisamy, Kannan M. Saeid, Nawaf H. TJ Mechanical engineering and machinery Combined convection heat transfer and fluid flow around a circular cylinder surface placed in open-fcell aluminum foams and subjected to constant heat flux inside a rectangular, water-filled horizontal channel was numerically and experimentally studied. Two models (rectangular and trapezoidal open-cell aluminum foam shapes) made of 6101-T6 alloy with pore densities of 10 and 40 pores per linear inch (PPI) and 7-9% relative density were employed as test sections. The aluminum foam dimensions were 35.7 x 35.7 x 36.85 mm, the Reynolds number range was 60-2000, and the modified Grashof number range was 2 x 10(2)-2.6 x 10(7). Governing equations (continuity, momentum, and energy) were solved using the finite-volume method (FVM). Effects of the porous characteristics of aluminum foams and mixed convection heat transfer parameters on buoyancy force, Nusselt number, friction factor, and pumping power values of the two models were investigated. The results show that high mixed convection occurred with the trapezoidal model. A high average Nusselt number value was obtained at 40PPI in the rectangular model. In the trapezoidal model, average Nusselt number decreased with increased aluminum foam pore density. Friction factor increased slightly with increasing modified Grashof number and decreased with increasing Reynolds number. Pumping power increased with increased pore density of aluminum foam and mixed convection parameters. The comparison shows good agreement between the numerical and experimental work and that the average results produced have an 8.02% deviation in average Nusselt number Taylor and Francis Inc. 2015-05 Article PeerReviewed Mahdi, Raed Abed and Mohammed, Hussein A. and Munisamy, Kannan M. and Saeid, Nawaf H. (2015) Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams. Chemical Engineering Communications, 202 (5). pp. 674-693. ISSN 0098-6445 http://dx.doi.org/10.1080/00986445.2013.863188 DOI:10.1080/00986445.2013.863188
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mahdi, Raed Abed
Mohammed, Hussein A.
Munisamy, Kannan M.
Saeid, Nawaf H.
Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
description Combined convection heat transfer and fluid flow around a circular cylinder surface placed in open-fcell aluminum foams and subjected to constant heat flux inside a rectangular, water-filled horizontal channel was numerically and experimentally studied. Two models (rectangular and trapezoidal open-cell aluminum foam shapes) made of 6101-T6 alloy with pore densities of 10 and 40 pores per linear inch (PPI) and 7-9% relative density were employed as test sections. The aluminum foam dimensions were 35.7 x 35.7 x 36.85 mm, the Reynolds number range was 60-2000, and the modified Grashof number range was 2 x 10(2)-2.6 x 10(7). Governing equations (continuity, momentum, and energy) were solved using the finite-volume method (FVM). Effects of the porous characteristics of aluminum foams and mixed convection heat transfer parameters on buoyancy force, Nusselt number, friction factor, and pumping power values of the two models were investigated. The results show that high mixed convection occurred with the trapezoidal model. A high average Nusselt number value was obtained at 40PPI in the rectangular model. In the trapezoidal model, average Nusselt number decreased with increased aluminum foam pore density. Friction factor increased slightly with increasing modified Grashof number and decreased with increasing Reynolds number. Pumping power increased with increased pore density of aluminum foam and mixed convection parameters. The comparison shows good agreement between the numerical and experimental work and that the average results produced have an 8.02% deviation in average Nusselt number
format Article
author Mahdi, Raed Abed
Mohammed, Hussein A.
Munisamy, Kannan M.
Saeid, Nawaf H.
author_facet Mahdi, Raed Abed
Mohammed, Hussein A.
Munisamy, Kannan M.
Saeid, Nawaf H.
author_sort Mahdi, Raed Abed
title Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
title_short Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
title_full Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
title_fullStr Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
title_full_unstemmed Experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
title_sort experimental and numerical investigation of combined convection heat transfer and fluid flow around circular cylinder through rectangular and trapezoidal open-cell aluminum foams
publisher Taylor and Francis Inc.
publishDate 2015
url http://eprints.utm.my/id/eprint/55157/
http://dx.doi.org/10.1080/00986445.2013.863188
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score 13.211869

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