Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model
The present paper analyzes the problem of two-dimensional mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium. It is assumed that the Darcy's law holds and that the solid and fluid phases of the medium are not in thermal equilibrium. Us...
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| Format: | Article |
| Language: | English |
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The American Society of Mechanical Engineers
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/53296/ http://psasir.upm.edu.my/id/eprint/53296/1/Mixed%20convection%20boundary%20layer%20flow%20near%20the%20lower%20stagnation%20point%20of%20a%20cylinder%20embedded%20in%20a%20porous%20medium%20using%20a%20thermal%20nonequilibrium%20model.pdf |
| _version_ | 1848852245627535360 |
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| author | Rosali, Haliza Ishak, Anuar Pop, Ioan |
| author_facet | Rosali, Haliza Ishak, Anuar Pop, Ioan |
| author_sort | Rosali, Haliza |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The present paper analyzes the problem of two-dimensional mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium. It is assumed that the Darcy's law holds and that the solid and fluid phases of the medium are not in thermal equilibrium. Using an appropriate similarity transformation, the governing system of partial differential equations are transformed into a system of ordinary differential equations, before being solved numerically by a finite-difference method. We investigate the dependence of the Nusselt number on the solid-fluid parameters, thermal conductivity ratio and the mixed convection parameter. The results indicate that dual solutions exist for buoyancy opposing flow, while for the assisting flow, the solution is unique. |
| first_indexed | 2025-11-15T10:35:01Z |
| format | Article |
| id | upm-53296 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:35:01Z |
| publishDate | 2016 |
| publisher | The American Society of Mechanical Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-532962022-03-18T01:55:13Z http://psasir.upm.edu.my/id/eprint/53296/ Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model Rosali, Haliza Ishak, Anuar Pop, Ioan The present paper analyzes the problem of two-dimensional mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium. It is assumed that the Darcy's law holds and that the solid and fluid phases of the medium are not in thermal equilibrium. Using an appropriate similarity transformation, the governing system of partial differential equations are transformed into a system of ordinary differential equations, before being solved numerically by a finite-difference method. We investigate the dependence of the Nusselt number on the solid-fluid parameters, thermal conductivity ratio and the mixed convection parameter. The results indicate that dual solutions exist for buoyancy opposing flow, while for the assisting flow, the solution is unique. The American Society of Mechanical Engineers 2016-04 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/53296/1/Mixed%20convection%20boundary%20layer%20flow%20near%20the%20lower%20stagnation%20point%20of%20a%20cylinder%20embedded%20in%20a%20porous%20medium%20using%20a%20thermal%20nonequilibrium%20model.pdf Rosali, Haliza and Ishak, Anuar and Pop, Ioan (2016) Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model. Journal of Heat Transfer, 138 (8). pp. 1-7. ISSN 0022-1481; ESSN: 1528-8943 http://heattransfer.asmedigitalcollection.asme.org/article.aspx?articleid=2508129 10.1115/1.4033164 |
| spellingShingle | Rosali, Haliza Ishak, Anuar Pop, Ioan Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| title | Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| title_full | Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| title_fullStr | Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| title_full_unstemmed | Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| title_short | Mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| title_sort | mixed convection boundary layer flow near the lower stagnation point of a cylinder embedded in a porous medium using a thermal nonequilibrium model |
| url | http://psasir.upm.edu.my/id/eprint/53296/ http://psasir.upm.edu.my/id/eprint/53296/ http://psasir.upm.edu.my/id/eprint/53296/ http://psasir.upm.edu.my/id/eprint/53296/1/Mixed%20convection%20boundary%20layer%20flow%20near%20the%20lower%20stagnation%20point%20of%20a%20cylinder%20embedded%20in%20a%20porous%20medium%20using%20a%20thermal%20nonequilibrium%20model.pdf |