A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube
This study presents a comprehensive comparison between various models in numerical/CFD approaches to investigate a case study of the laminar forced convection flow of Al2O3/water nanofluid with 1.6% volume fraction and Re=1600 in a heated tube. The quantitative deviation in Nusselt number for the ca...
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| Online Access: | https://doi.org/10.1016/j.icheatmasstransfer.2015.11.001 https://doi.org/10.1016/j.icheatmasstransfer.2015.11.001 |
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um-184962017-12-07T08:02:45Z A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube Behroyan, I. Vanaki, S. Ganesan, P. Saidur, R. TJ Mechanical engineering and machinery This study presents a comprehensive comparison between various models in numerical/CFD approaches to investigate a case study of the laminar forced convection flow of Al2O3/water nanofluid with 1.6% volume fraction and Re=1600 in a heated tube. The quantitative deviation in Nusselt number for the case study is reported using (i) four types of single-phase models, including Newtonian and non-Newtonian single-phase models with assessing the effect of two different thermal dispersion models based on velocity and temperature gradient (ii) four types of two-phase models, including Eulerian, mixture (types 1 and 2) and discrete phase models. According to the results, non-Newtonian single-phase model predicts more accurate Nusselt number than Newtonian single-phase model, with average errors of 5.98% and 4.84% respectively. Incorporating the dispersion models in non-Newtonian single-phase approach, the average error decreases to 2.07% for dispersion models type 1 and 3.33%, for dispersion models type 2. Regarding two-phase models, Eulerian, mixture type 1, mixture type 2, and discrete phase model show the average error of 2.79%, 17.57%, 5.87% and 2.73% respectively. The repeatability and the consistency of the findings of some of most accurate models was checked for 0-2% nanoparticle volume fraction and also for Re ranging from 745 to 1600. This study benefits when comes to selecting a suitable model for a similar type case study. Elsevier 2016 Article PeerReviewed https://doi.org/10.1016/j.icheatmasstransfer.2015.11.001 Behroyan, I.; Vanaki, S.; Ganesan, P.; Saidur, R. (2016) A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube. International Communications in Heat and Mass Transfer <http://eprints.um.edu.my/view/publication/International_Communications_in_Heat_and_Mass_Transfer.html>, 70. pp. 27-37. ISSN 0735-1933 http://eprints.um.edu.my/18496/ |
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Digital Repository |
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Local University |
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University Malaya |
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UM Research Repository |
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Online Access |
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TJ Mechanical engineering and machinery |
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TJ Mechanical engineering and machinery Behroyan, I. Vanaki, S. Ganesan, P. Saidur, R. A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube |
| description |
This study presents a comprehensive comparison between various models in numerical/CFD approaches to investigate a case study of the laminar forced convection flow of Al2O3/water nanofluid with 1.6% volume fraction and Re=1600 in a heated tube. The quantitative deviation in Nusselt number for the case study is reported using (i) four types of single-phase models, including Newtonian and non-Newtonian single-phase models with assessing the effect of two different thermal dispersion models based on velocity and temperature gradient (ii) four types of two-phase models, including Eulerian, mixture (types 1 and 2) and discrete phase models. According to the results, non-Newtonian single-phase model predicts more accurate Nusselt number than Newtonian single-phase model, with average errors of 5.98% and 4.84% respectively. Incorporating the dispersion models in non-Newtonian single-phase approach, the average error decreases to 2.07% for dispersion models type 1 and 3.33%, for dispersion models type 2. Regarding two-phase models, Eulerian, mixture type 1, mixture type 2, and discrete phase model show the average error of 2.79%, 17.57%, 5.87% and 2.73% respectively. The repeatability and the consistency of the findings of some of most accurate models was checked for 0-2% nanoparticle volume fraction and also for Re ranging from 745 to 1600. This study benefits when comes to selecting a suitable model for a similar type case study. |
| format |
Article |
| author |
Behroyan, I. Vanaki, S. Ganesan, P. Saidur, R. |
| author_facet |
Behroyan, I. Vanaki, S. Ganesan, P. Saidur, R. |
| author_sort |
Behroyan, I. |
| title |
A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube |
| title_short |
A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube |
| title_full |
A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube |
| title_fullStr |
A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube |
| title_full_unstemmed |
A comprehensive comparison of various CFD models for convective heat transfer of Al2O3 nanofluid inside a heated tube |
| title_sort |
comprehensive comparison of various cfd models for convective heat transfer of al2o3 nanofluid inside a heated tube |
| publisher |
Elsevier |
| publishDate |
2016 |
| url |
https://doi.org/10.1016/j.icheatmasstransfer.2015.11.001 https://doi.org/10.1016/j.icheatmasstransfer.2015.11.001 |
| first_indexed |
2018-09-06T06:51:27Z |
| last_indexed |
2018-09-06T06:51:27Z |
| _version_ |
1610839949685293056 |