Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles
The present paper focuses on problem of mixed convection fluid flow and heat transfer of Al2O3-water nanofluid with temperature and nanoparticles concentration dependent thermal conductivity and effective viscosity inside Lid-driven cavity having a hot rectangular obstacle. The governing equations a...
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| Format: | Article |
| Language: | English |
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Semnan University
2018-05-01
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| Series: | Journal of Heat and Mass Transfer Research |
| Subjects: | |
| Online Access: | https://jhmtr.semnan.ac.ir/article_428_c92e2216d95dfb6b85e101985caa02e5.pdf |
| _version_ | 1797259663077539840 |
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| author | Mohammad Hemmat Esfe Seyfolah Saedodin |
| author_facet | Mohammad Hemmat Esfe Seyfolah Saedodin |
| author_sort | Mohammad Hemmat Esfe |
| collection | DOAJ |
| description | The present paper focuses on problem of mixed convection fluid flow and heat transfer of Al2O3-water nanofluid with temperature and nanoparticles concentration dependent thermal conductivity and effective viscosity inside Lid-driven cavity having a hot rectangular obstacle. The governing equations are discretized using the finite volume method while the SIMPLER algorithm is employed to couple velocity and pressure fields. Using the developed code, the effects of cavity inclination angle, diameter and solid volume fraction of the Al2O3 nanoparticles on the flow and thermal fields and heat transfer inside the cavity are studied. The results show that at all solid volume fraction the average Nusselt number has inverse relationship with nanoparticles diameter. Also the results have clearly indicated that with increasing slope of the cavity to 90 degree, heat transfer continuously decreases at all studied Richardson numbers© 2017 Published by Semnan University Press. All rights reserved. |
| first_indexed | 2024-04-24T23:13:00Z |
| format | Article |
| id | doaj.art-c24b505da3194af685c6886fe811000f |
| institution | Directory Open Access Journal |
| issn | 2345-508X 2383-3068 |
| language | English |
| last_indexed | 2024-04-24T23:13:00Z |
| publishDate | 2018-05-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Heat and Mass Transfer Research |
| spelling | doaj.art-c24b505da3194af685c6886fe811000f2024-03-17T08:03:19ZengSemnan UniversityJournal of Heat and Mass Transfer Research2345-508X2383-30682018-05-0151394910.22075/jhmtr.2016.428428Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination anglesMohammad Hemmat Esfe0Seyfolah Saedodin1Semnan UniversitySemnan UniversityThe present paper focuses on problem of mixed convection fluid flow and heat transfer of Al2O3-water nanofluid with temperature and nanoparticles concentration dependent thermal conductivity and effective viscosity inside Lid-driven cavity having a hot rectangular obstacle. The governing equations are discretized using the finite volume method while the SIMPLER algorithm is employed to couple velocity and pressure fields. Using the developed code, the effects of cavity inclination angle, diameter and solid volume fraction of the Al2O3 nanoparticles on the flow and thermal fields and heat transfer inside the cavity are studied. The results show that at all solid volume fraction the average Nusselt number has inverse relationship with nanoparticles diameter. Also the results have clearly indicated that with increasing slope of the cavity to 90 degree, heat transfer continuously decreases at all studied Richardson numbers© 2017 Published by Semnan University Press. All rights reserved.https://jhmtr.semnan.ac.ir/article_428_c92e2216d95dfb6b85e101985caa02e5.pdfnanofluidvariable propertiessolid volume fractionlid-driven cavitydiameter of nanoparticles |
| spellingShingle | Mohammad Hemmat Esfe Seyfolah Saedodin Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles Journal of Heat and Mass Transfer Research nanofluid variable properties solid volume fraction lid-driven cavity diameter of nanoparticles |
| title | Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles |
| title_full | Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles |
| title_fullStr | Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles |
| title_full_unstemmed | Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles |
| title_short | Numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles |
| title_sort | numerical study of a combined convection flow in a cavity filled with nanofluid considering effects of diameter of nanoparticles and cavity inclination angles |
| topic | nanofluid variable properties solid volume fraction lid-driven cavity diameter of nanoparticles |
| url | https://jhmtr.semnan.ac.ir/article_428_c92e2216d95dfb6b85e101985caa02e5.pdf |
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