Stability analysis of mixed convection flow towards a moving thin needle in nanofluid
The problem of steady laminar mixed convection flow and heat transfer past a moving vertical thin needle in nanofluid for both assisting and opposing cases is analyzed in this paper. Three types of nanoparticles including copper, titania and alumina are taken into consideration. The nonlinear ordina...
| Main Authors: | , , , , |
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| Format: | Article |
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MDPI
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73952/ |
| _version_ | 1848857403188051968 |
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| author | Salleh, Siti Nur Alwani Bachok, Norfifah Md. Arifin, Norihan Md. Ali, Fadzilah Pop, Ioan |
| author_facet | Salleh, Siti Nur Alwani Bachok, Norfifah Md. Arifin, Norihan Md. Ali, Fadzilah Pop, Ioan |
| author_sort | Salleh, Siti Nur Alwani |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The problem of steady laminar mixed convection flow and heat transfer past a moving vertical thin needle in nanofluid for both assisting and opposing cases is analyzed in this paper. Three types of nanoparticles including copper, titania and alumina are taken into consideration. The nonlinear ordinary differential equations for momentum and energy have been transformed by adopting the similarity transformation in linear form. The problem is solved numerically using an implemented package called bvp4c in MATLAB software. The numerical computations are carried out for various parameters of interest, which consists of the velocity ratio parameter, mixed convection parameter, nanoparticle volume fraction parameter and the needle size. A stability analysis of the solution is performed showing that the upper branch solution is stable, while the lower branch solution is unstable. Validation of the present work is done by comparing the current results with those available in the existing literature and found to be in excellent agreement. |
| first_indexed | 2025-11-15T11:57:00Z |
| format | Article |
| id | upm-73952 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T11:57:00Z |
| publishDate | 2018 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-739522023-01-12T06:34:56Z http://psasir.upm.edu.my/id/eprint/73952/ Stability analysis of mixed convection flow towards a moving thin needle in nanofluid Salleh, Siti Nur Alwani Bachok, Norfifah Md. Arifin, Norihan Md. Ali, Fadzilah Pop, Ioan The problem of steady laminar mixed convection flow and heat transfer past a moving vertical thin needle in nanofluid for both assisting and opposing cases is analyzed in this paper. Three types of nanoparticles including copper, titania and alumina are taken into consideration. The nonlinear ordinary differential equations for momentum and energy have been transformed by adopting the similarity transformation in linear form. The problem is solved numerically using an implemented package called bvp4c in MATLAB software. The numerical computations are carried out for various parameters of interest, which consists of the velocity ratio parameter, mixed convection parameter, nanoparticle volume fraction parameter and the needle size. A stability analysis of the solution is performed showing that the upper branch solution is stable, while the lower branch solution is unstable. Validation of the present work is done by comparing the current results with those available in the existing literature and found to be in excellent agreement. MDPI 2018-05-23 Article PeerReviewed Salleh, Siti Nur Alwani and Bachok, Norfifah and Md. Arifin, Norihan and Md. Ali, Fadzilah and Pop, Ioan (2018) Stability analysis of mixed convection flow towards a moving thin needle in nanofluid. Applied Sciences-Basel, 8 (6). Jan-13. ISSN 2076-3417 https://www.mdpi.com/2076-3417/8/6/842 10.3390/app8060842 |
| spellingShingle | Salleh, Siti Nur Alwani Bachok, Norfifah Md. Arifin, Norihan Md. Ali, Fadzilah Pop, Ioan Stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| title | Stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| title_full | Stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| title_fullStr | Stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| title_full_unstemmed | Stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| title_short | Stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| title_sort | stability analysis of mixed convection flow towards a moving thin needle in nanofluid |
| url | http://psasir.upm.edu.my/id/eprint/73952/ http://psasir.upm.edu.my/id/eprint/73952/ http://psasir.upm.edu.my/id/eprint/73952/ |