Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step

Experimental and numerical studies were presented to reveal the flow and heat transfer characteristics of nanofluid laminar flow over the microscale backward-facing step (MBFS). The duct inlet and the step height were 400 μm and 600 μm respectively. All the walls considered adiabatic except the down...

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Main Authors: Kherbeet, A. Sh., Mohammed, Hussein A., Salman, B. H., Ahmed, Hamdi E., Alawi, Omer A.
Format: Article
Published: Elsevier Ltd. 2014
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Online Access:http://eprints.utm.my/id/eprint/52796/
http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.08.074
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Institution: Universiti Teknologi Malaysia
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spelling my.utm.527962018-07-04T11:49:48Z http://eprints.utm.my/id/eprint/52796/ Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step Kherbeet, A. Sh. Mohammed, Hussein A. Salman, B. H. Ahmed, Hamdi E. Alawi, Omer A. TJ Mechanical engineering and machinery Experimental and numerical studies were presented to reveal the flow and heat transfer characteristics of nanofluid laminar flow over the microscale backward-facing step (MBFS). The duct inlet and the step height were 400 μm and 600 μm respectively. All the walls considered adiabatic except the downstream wall is heated by uniform heat flux. The experiment is conducted at the Reynolds number range from 280 to 470. The distilled water is considered as a base fluid with two types of nanoparticles SiO2 and Al2O3 immersed in the base fluid. The particle diameter is 30 nm and the range of nanoparticles volume fraction in the base fluid varied from 0 to 0.01. The measurement results revealed that the water-SiO2 nanofluid has the highest Nusselt number. It is found also that the Nusselt number increase with increases volume fraction. The water-SiO2 nanofluid with higher volume fraction has the highest Nusselt number. The friction factor of water-Al2O3 was higher than of water-SiO2 mixture. The numerical results were in good agreement with the measurement results. Elsevier Ltd. 2014 Article PeerReviewed Kherbeet, A. Sh. and Mohammed, Hussein A. and Salman, B. H. and Ahmed, Hamdi E. and Alawi, Omer A. (2014) Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step. International Journal of Heat and Mass Transfer, 79 . pp. 858-867. ISSN 0017-9310 http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.08.074
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
Kherbeet, A. Sh.
Mohammed, Hussein A.
Salman, B. H.
Ahmed, Hamdi E.
Alawi, Omer A.
Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
description Experimental and numerical studies were presented to reveal the flow and heat transfer characteristics of nanofluid laminar flow over the microscale backward-facing step (MBFS). The duct inlet and the step height were 400 μm and 600 μm respectively. All the walls considered adiabatic except the downstream wall is heated by uniform heat flux. The experiment is conducted at the Reynolds number range from 280 to 470. The distilled water is considered as a base fluid with two types of nanoparticles SiO2 and Al2O3 immersed in the base fluid. The particle diameter is 30 nm and the range of nanoparticles volume fraction in the base fluid varied from 0 to 0.01. The measurement results revealed that the water-SiO2 nanofluid has the highest Nusselt number. It is found also that the Nusselt number increase with increases volume fraction. The water-SiO2 nanofluid with higher volume fraction has the highest Nusselt number. The friction factor of water-Al2O3 was higher than of water-SiO2 mixture. The numerical results were in good agreement with the measurement results.
format Article
author Kherbeet, A. Sh.
Mohammed, Hussein A.
Salman, B. H.
Ahmed, Hamdi E.
Alawi, Omer A.
author_facet Kherbeet, A. Sh.
Mohammed, Hussein A.
Salman, B. H.
Ahmed, Hamdi E.
Alawi, Omer A.
author_sort Kherbeet, A. Sh.
title Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
title_short Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
title_full Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
title_fullStr Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
title_full_unstemmed Experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
title_sort experimental and numerical study of nanofluid flow and heat transfer over microscale backward-facing step
publisher Elsevier Ltd.
publishDate 2014
url http://eprints.utm.my/id/eprint/52796/
http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.08.074
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