Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities
The present study aims to evaluate the mixed convection flow and heat transfer of functionalized DWCNT/water nanofluids with variable properties in a cavity having hot baffles. The investigation is performed at different nanoparticles volume fraction including 0, 0.0002, 0.001, 0.002, and 0.004, Ric...
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VINCA Institute of Nuclear Sciences
2018-01-01
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doaj-9fdf8a59e964449285fbf70be8dc3caa2021-01-02T06:48:39ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362334-71632018-01-01226 Part A2503251410.2298/TSCI160225216E0354-98361600216EMixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavitiesHemmat Esfe Mohammad0Abbasian Arani Ali Akbar1Yan Wei-Mon2Aghaie Alireza3Afrand Masoud4Sina Nima5Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Isfahan, IranDepartment of Mechanical Engineering, University of Kashan, Kashan, IranDepartment of Energy and Refrigerating Air-Conditioning Engineering,Department of Mechanical Engineering, University of Kashan, Kashan, IranDepartment of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Isfahan, IranDepartment of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Isfahan, IranThe present study aims to evaluate the mixed convection flow and heat transfer of functionalized DWCNT/water nanofluids with variable properties in a cavity having hot baffles. The investigation is performed at different nanoparticles volume fraction including 0, 0.0002, 0.001, 0.002, and 0.004, Richardson numbers ranging from 0.01 to 100, inclination angles ranging from 0 to 60° and at constant Grashof number of 104. The results presented as streamlines and isotherms plot and Nusselt number diagrams. According to the finding with increasing nanoparticles volume fraction and distance between the left hot baffles of nanoparticles average Nusselt number enhances for all considered Richardson numbers and cavity inclination angles. Also with increasing Richardson number, the rate of changes of average Nusselt number increase with increasing distance between the left hot baffles. For example, at Richardson number of 0.01, by increasing L1 from 0.4 to 0.6, the average Nusselt number increases 7%; while for similar situation at Richardson number of 0.1, 1.0, and 10, the average Nusselt number increases, respectively, 17%, 24%, and 26%. At all Richardson numbers, the maximum value of average Nusselt number is achieved for a minimum length of left baffles. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/TSCI190203032E">10.2298/TSCI190203032E</a><u></b></font>http://www.doiserbia.nb.rs/img/doi/0354-9836/2018/0354-98361600216E.pdfnanofluidsquare cavitybafflefunctionalized DWCNT-watermixed convection |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hemmat Esfe Mohammad Abbasian Arani Ali Akbar Yan Wei-Mon Aghaie Alireza Afrand Masoud Sina Nima |
spellingShingle |
Hemmat Esfe Mohammad Abbasian Arani Ali Akbar Yan Wei-Mon Aghaie Alireza Afrand Masoud Sina Nima Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities Thermal Science nanofluid square cavity baffle functionalized DWCNT-water mixed convection |
author_facet |
Hemmat Esfe Mohammad Abbasian Arani Ali Akbar Yan Wei-Mon Aghaie Alireza Afrand Masoud Sina Nima |
author_sort |
Hemmat Esfe Mohammad |
title |
Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities |
title_short |
Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities |
title_full |
Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities |
title_fullStr |
Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities |
title_full_unstemmed |
Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities |
title_sort |
mixed convection of functionalized dwcnt-water nanofluid in baffled lid-driven cavities |
publisher |
VINCA Institute of Nuclear Sciences |
series |
Thermal Science |
issn |
0354-9836 2334-7163 |
publishDate |
2018-01-01 |
description |
The present study aims to evaluate the mixed convection flow and heat transfer of functionalized DWCNT/water nanofluids with variable properties in a cavity having hot baffles. The investigation is performed at different nanoparticles volume fraction including 0, 0.0002, 0.001, 0.002, and 0.004, Richardson numbers ranging from 0.01 to 100, inclination angles ranging from 0 to 60° and at constant Grashof number of 104. The results presented as streamlines and isotherms plot and Nusselt number diagrams. According to the finding with increasing nanoparticles volume fraction and distance between the left hot baffles of nanoparticles average Nusselt number enhances for all considered Richardson numbers and cavity inclination angles. Also with increasing Richardson number, the rate of changes of average Nusselt number increase with increasing distance between the left hot baffles. For example, at Richardson number of 0.01, by increasing L1 from 0.4 to 0.6, the average Nusselt number increases 7%; while for similar situation at Richardson number of 0.1, 1.0, and 10, the average Nusselt number increases, respectively, 17%, 24%, and 26%. At all Richardson numbers, the maximum value of average Nusselt number is achieved for a minimum length of left baffles. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/TSCI190203032E">10.2298/TSCI190203032E</a><u></b></font> |
topic |
nanofluid square cavity baffle functionalized DWCNT-water mixed convection |
url |
http://www.doiserbia.nb.rs/img/doi/0354-9836/2018/0354-98361600216E.pdf |
work_keys_str_mv |
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