Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions
This study reveals the impact of heat generation and variable strength of rotation on the unsteady flow of a hybrid nanofluid over a rotatable disk with stretching characteristics and deceleration. A novel mathematical model specifically tailored to elucidate the behavior of a hybrid nanofluid is pr...
| Main Authors: | , , , |
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| Format: | Article |
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Informa UK Limited
2023
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| Online Access: | http://psasir.upm.edu.my/id/eprint/118892/ |
| _version_ | 1848867815689289728 |
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| author | Wahid, Nur Syahirah Md Arifin, Norihan Khashi’ie, Najiyah Safwa Pop, Ioan |
| author_facet | Wahid, Nur Syahirah Md Arifin, Norihan Khashi’ie, Najiyah Safwa Pop, Ioan |
| author_sort | Wahid, Nur Syahirah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study reveals the impact of heat generation and variable strength of rotation on the unsteady flow of a hybrid nanofluid over a rotatable disk with stretching characteristics and deceleration. A novel mathematical model specifically tailored to elucidate the behavior of a hybrid nanofluid is proposed. By employing similarity variables, the governing model is reformulated into ordinary differential equations (ODEs). The bvp4c function (MATLAB) is employed to efficiently obtain the numerical solutions of these ODEs. To provide a comprehensive study, a stability analysis is also conducted to investigate the properties associated with the non-unique dual solutions generated by the model. Dual solutions are generated, and both are analyzed to be stable. A lower amount of heat generation with greater disk rotation strength is recommended to further improve the heat transfer rate of the model. The bifurcation point is absent within the setup ranges of the parameters in the present study, which suggests a well-maintained laminar flow simulation. The findings of this study offer valuable insights and can assist other researchers in improving their understanding and modeling of similar fluid flow systems, particularly hybrid nanofluid flow systems. |
| first_indexed | 2025-11-15T14:42:30Z |
| format | Article |
| id | upm-118892 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:42:30Z |
| publishDate | 2023 |
| publisher | Informa UK Limited |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1188922025-07-29T03:23:39Z http://psasir.upm.edu.my/id/eprint/118892/ Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions Wahid, Nur Syahirah Md Arifin, Norihan Khashi’ie, Najiyah Safwa Pop, Ioan This study reveals the impact of heat generation and variable strength of rotation on the unsteady flow of a hybrid nanofluid over a rotatable disk with stretching characteristics and deceleration. A novel mathematical model specifically tailored to elucidate the behavior of a hybrid nanofluid is proposed. By employing similarity variables, the governing model is reformulated into ordinary differential equations (ODEs). The bvp4c function (MATLAB) is employed to efficiently obtain the numerical solutions of these ODEs. To provide a comprehensive study, a stability analysis is also conducted to investigate the properties associated with the non-unique dual solutions generated by the model. Dual solutions are generated, and both are analyzed to be stable. A lower amount of heat generation with greater disk rotation strength is recommended to further improve the heat transfer rate of the model. The bifurcation point is absent within the setup ranges of the parameters in the present study, which suggests a well-maintained laminar flow simulation. The findings of this study offer valuable insights and can assist other researchers in improving their understanding and modeling of similar fluid flow systems, particularly hybrid nanofluid flow systems. Informa UK Limited 2023 Article PeerReviewed Wahid, Nur Syahirah and Md Arifin, Norihan and Khashi’ie, Najiyah Safwa and Pop, Ioan (2023) Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions. Numerical Heat Transfer, Part A: Applications, 86 (7). pp. 1951-1967. ISSN 1040-7782; eISSN: 1521-0634 https://www.tandfonline.com/doi/full/10.1080/10407782.2023.2285346 10.1080/10407782.2023.2285346 |
| spellingShingle | Wahid, Nur Syahirah Md Arifin, Norihan Khashi’ie, Najiyah Safwa Pop, Ioan Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| title | Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| title_full | Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| title_fullStr | Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| title_full_unstemmed | Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| title_short | Unsteady Al2O3-Cu/H2O hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| title_sort | unsteady al2o3-cu/h2o hybrid nanofluid flow over a rotatable stretching disk with heat generation and deceleration: stable dual solutions |
| url | http://psasir.upm.edu.my/id/eprint/118892/ http://psasir.upm.edu.my/id/eprint/118892/ http://psasir.upm.edu.my/id/eprint/118892/ |