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Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body

This investigation is to concentrate on the effect of thermal radiation on free convection of a Cu-water nanofluid in a differentially heated cavity containing a solid square block placed in the middle. The upper and lower dividers of the cavity are kept as thermally protected; The coupled equations...

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Main Authors: Qasem, Sayyedah A., Sivasankaran, Sivasankaran, Siri, Zailan, Mothman, Wan A.
Format: Article
Published: Thermal Science 2021
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QA Mathematics
Online Access:http://eprints.um.edu.my/26451/
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spelling my.um.eprints.264512022-03-03T07:36:13Z http://eprints.um.edu.my/26451/ Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body Qasem, Sayyedah A. Sivasankaran, Sivasankaran Siri, Zailan Mothman, Wan A. QA Mathematics This investigation is to concentrate on the effect of thermal radiation on free convection of a Cu-water nanofluid in a differentially heated cavity containing a solid square block placed in the middle. The upper and lower dividers of the cavity are kept as thermally protected; The coupled equations of mass, momentum, and energy are governed the mathematical model. Finite difference method is used to solve the governing equations. All internal surfaces of the cavity are deemed as a diffused emitters and reflectors for radiation. The impacts of relevant parameters, the Rayleigh number (10(3) <= Ra <= 10(6)), volume fraction of nanoparticles (0.0 <= phi <= 0.04) and thermal radiation (Rd = 0, 1, 5, and 10), are explored. For various values of the flow parameters, the values for local and average Nusselt number are calculated. It is observed that the local and averaged Nusselt numbers are increased with an increase in the Rayleigh number and volume fraction of nanoparticles. Also, the temperature distribution of the fluid increases with an increase in the radiation parameter. Thermal Science 2021 Article PeerReviewed Qasem, Sayyedah A. and Sivasankaran, Sivasankaran and Siri, Zailan and Mothman, Wan A. (2021) Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body. Thermal Science, 25 (3, A). pp. 1949-1961. ISSN 0354-9836, DOI https://doi.org/10.2298/TSCI191003182Q <https://doi.org/10.2298/TSCI191003182Q>. 10.2298/TSCI191003182Q
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QA Mathematics
spellingShingle QA Mathematics
Qasem, Sayyedah A.
Sivasankaran, Sivasankaran
Siri, Zailan
Mothman, Wan A.
Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
description This investigation is to concentrate on the effect of thermal radiation on free convection of a Cu-water nanofluid in a differentially heated cavity containing a solid square block placed in the middle. The upper and lower dividers of the cavity are kept as thermally protected; The coupled equations of mass, momentum, and energy are governed the mathematical model. Finite difference method is used to solve the governing equations. All internal surfaces of the cavity are deemed as a diffused emitters and reflectors for radiation. The impacts of relevant parameters, the Rayleigh number (10(3) <= Ra <= 10(6)), volume fraction of nanoparticles (0.0 <= phi <= 0.04) and thermal radiation (Rd = 0, 1, 5, and 10), are explored. For various values of the flow parameters, the values for local and average Nusselt number are calculated. It is observed that the local and averaged Nusselt numbers are increased with an increase in the Rayleigh number and volume fraction of nanoparticles. Also, the temperature distribution of the fluid increases with an increase in the radiation parameter.
format Article
author Qasem, Sayyedah A.
Sivasankaran, Sivasankaran
Siri, Zailan
Mothman, Wan A.
author_facet Qasem, Sayyedah A.
Sivasankaran, Sivasankaran
Siri, Zailan
Mothman, Wan A.
author_sort Qasem, Sayyedah A.
title Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
title_short Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
title_full Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
title_fullStr Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
title_full_unstemmed Effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
title_sort effect of thermal radiation on natural convection of a nanofluid in a square cavity with a solid body
publisher Thermal Science
publishDate 2021
url http://eprints.um.edu.my/26451/
_version_ 1735409414562643968
score 13.211869

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