The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet
This study is considering a micropolar fluid flow over a porous stretching sheet in the presence of thermal radiation and uniform magnetic field. The effects of local variation in thermal conductivity of micropolar fluid on heat transfer rate from the sheet are investigated; besides, the impacts of...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Islamic Azad University-Isfahan (Khorasgan) Branch
2016-06-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
| Subjects: | |
| Online Access: | https://admt.isfahan.iau.ir/article_534965_8f3668d0ac0d54893c054f02e9fb1e89.pdf |
| _version_ | 1797657247302549504 |
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| author | Reza Keimanesh Cyrus Aghanajafi |
| author_facet | Reza Keimanesh Cyrus Aghanajafi |
| author_sort | Reza Keimanesh |
| collection | DOAJ |
| description | This study is considering a micropolar fluid flow over a porous stretching sheet in the presence of thermal radiation and uniform magnetic field. The effects of local variation in thermal conductivity of micropolar fluid on heat transfer rate from the sheet are investigated; besides, the impacts of radiation, magnetic field and porous sheet on variations of thermal boundary layer thickness are considered. The results show that the increase of thermal conductivity thickens thermal boundary layer, so heat transfer rate decreases. In addition, intensification of magnetic field and the presence of radiation lower the absolute values of temperature gradient on the wall, and reduce the cooling rate of the sheet. On the contrary, the increase of suction and material parameter has positive influence on cooling rate of the sheet. |
| first_indexed | 2024-03-11T17:41:45Z |
| format | Article |
| id | doaj.art-459d8ad92e7f48d5bd5b060d71f8e1cf |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:41:45Z |
| publishDate | 2016-06-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-459d8ad92e7f48d5bd5b060d71f8e1cf2023-10-18T09:21:00ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472016-06-01921925534965The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous SheetReza Keimanesh0Cyrus Aghanajafi1Department of Mechanical Engineering, K. N. Toosi University of Technology, IranDepartment of Mechanical Engineering, K. N. Toosi University of Technology, IranThis study is considering a micropolar fluid flow over a porous stretching sheet in the presence of thermal radiation and uniform magnetic field. The effects of local variation in thermal conductivity of micropolar fluid on heat transfer rate from the sheet are investigated; besides, the impacts of radiation, magnetic field and porous sheet on variations of thermal boundary layer thickness are considered. The results show that the increase of thermal conductivity thickens thermal boundary layer, so heat transfer rate decreases. In addition, intensification of magnetic field and the presence of radiation lower the absolute values of temperature gradient on the wall, and reduce the cooling rate of the sheet. On the contrary, the increase of suction and material parameter has positive influence on cooling rate of the sheet.https://admt.isfahan.iau.ir/article_534965_8f3668d0ac0d54893c054f02e9fb1e89.pdfmagnetic fieldmicropolar fluidradiationthermal conductivity |
| spellingShingle | Reza Keimanesh Cyrus Aghanajafi The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet International Journal of Advanced Design and Manufacturing Technology magnetic field micropolar fluid radiation thermal conductivity |
| title | The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet |
| title_full | The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet |
| title_fullStr | The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet |
| title_full_unstemmed | The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet |
| title_short | The Effects of Local Variation in Thermal Conductivity on Heat Transfer of a Micropolar Fluid Flow Over a Porous Sheet |
| title_sort | effects of local variation in thermal conductivity on heat transfer of a micropolar fluid flow over a porous sheet |
| topic | magnetic field micropolar fluid radiation thermal conductivity |
| url | https://admt.isfahan.iau.ir/article_534965_8f3668d0ac0d54893c054f02e9fb1e89.pdf |
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