Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid
The present work investigated the unsteady stagnation-point flow and heat transfer of a nanofluid containing gyrotactic microorganisms past a permeable moving surface. The similarity transformations produced the mathematical model in the simpler form, which is in the form of ordinary differential eq...
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| Format: | Article |
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Physical Society of the Republic of China
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/85891/ |
| _version_ | 1848860204276383744 |
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| author | Md Basir, Md Faisal Hafidzuddin, Mohd Ezad Hafidz Naganthran, Kohilavani Hashim Chaharborj, Sarkhosh Seddighi Mohd Kasihmuddin, Mohd Shareduwan Nazar, Roslinda |
| author_facet | Md Basir, Md Faisal Hafidzuddin, Mohd Ezad Hafidz Naganthran, Kohilavani Hashim Chaharborj, Sarkhosh Seddighi Mohd Kasihmuddin, Mohd Shareduwan Nazar, Roslinda |
| author_sort | Md Basir, Md Faisal |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The present work investigated the unsteady stagnation-point flow and heat transfer of a nanofluid containing gyrotactic microorganisms past a permeable moving surface. The similarity transformations produced the mathematical model in the simpler form, which is in the form of ordinary differential equations, and the collocation method solved it numerically. The dual solutions are observable when the governing parameters vary. The decelerating flow and weak effect of suction at the shrinking sheet delays the boundary layer separation. Stability analysis showed that the upper branch solution is a solution with the stabilizing feature while the lower branch solution is an unstable solution which implies the flow with separation. This theoretical study is significantly relevant to microscopic biological propulsion integrated with the nano-based system. |
| first_indexed | 2025-11-15T12:41:31Z |
| format | Article |
| id | upm-85891 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T12:41:31Z |
| publishDate | 2020 |
| publisher | Physical Society of the Republic of China |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-858912023-10-11T01:00:49Z http://psasir.upm.edu.my/id/eprint/85891/ Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid Md Basir, Md Faisal Hafidzuddin, Mohd Ezad Hafidz Naganthran, Kohilavani Hashim Chaharborj, Sarkhosh Seddighi Mohd Kasihmuddin, Mohd Shareduwan Nazar, Roslinda The present work investigated the unsteady stagnation-point flow and heat transfer of a nanofluid containing gyrotactic microorganisms past a permeable moving surface. The similarity transformations produced the mathematical model in the simpler form, which is in the form of ordinary differential equations, and the collocation method solved it numerically. The dual solutions are observable when the governing parameters vary. The decelerating flow and weak effect of suction at the shrinking sheet delays the boundary layer separation. Stability analysis showed that the upper branch solution is a solution with the stabilizing feature while the lower branch solution is an unstable solution which implies the flow with separation. This theoretical study is significantly relevant to microscopic biological propulsion integrated with the nano-based system. Physical Society of the Republic of China 2020 Article PeerReviewed Md Basir, Md Faisal and Hafidzuddin, Mohd Ezad Hafidz and Naganthran, Kohilavani and Hashim and Chaharborj, Sarkhosh Seddighi and Mohd Kasihmuddin, Mohd Shareduwan and Nazar, Roslinda (2020) Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid. Chinese Journal of Physics, 65. 538 - 553. ISSN 0577-9073 https://www.sciencedirect.com/science/article/pii/S0577907320300435 10.1016/j.cjph.2020.02.021 |
| spellingShingle | Md Basir, Md Faisal Hafidzuddin, Mohd Ezad Hafidz Naganthran, Kohilavani Hashim Chaharborj, Sarkhosh Seddighi Mohd Kasihmuddin, Mohd Shareduwan Nazar, Roslinda Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| title | Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| title_full | Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| title_fullStr | Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| title_full_unstemmed | Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| title_short | Stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| title_sort | stability analysis of unsteady stagnation-point gyrotactic bioconvection flow and heat transfer towards the moving sheet in a nanofluid |
| url | http://psasir.upm.edu.my/id/eprint/85891/ http://psasir.upm.edu.my/id/eprint/85891/ http://psasir.upm.edu.my/id/eprint/85891/ |