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Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems
Thesis (MMil)--Stellenbosch University, 2021.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2021
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| _version_ | 1867614041554288640 |
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| access_status_str | Open Access |
| author | Tshivhi, Khodani Sherrif |
| author2 | Makinde, Oluwole Daniel |
| author_browse | Makinde, Oluwole Daniel Tshivhi, Khodani Sherrif |
| author_facet | Makinde, Oluwole Daniel Tshivhi, Khodani Sherrif |
| author_sort | Tshivhi, Khodani Sherrif |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MMil)--Stellenbosch University, 2021. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/123816 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:45:43.568Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/123816 Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems Tshivhi, Khodani Sherrif Makinde, Oluwole Daniel Stellenbosch University. Faculty of Military Sciences. School of Science and Technology. Heat transfer Heat -- Transmission Nanofluids Boundary layer (Meteorology) Magnetohydrodynamics (MHD) Nusselt number Runge-Kutta formulas Differential equations, Partial Control theory UCTD Thesis (MMil)--Stellenbosch University, 2021. ENGLISH ABSTRACT: The flow investigations regarding nonlinear materials are extremely important in the applied science and engineering areas to explore the properties of flow and heat transfer. Recent advancement in nanotechnology has provided a veritable platform for the emergence of a better ultrahigh-performance coolant known as nanofluid for many engineering and industrial technologies. In this study, we examine the influence of a magnetic field on the heat transfer enhancement of nanofluid coolants consisting of Cu-water, or Al2O3-water, or Fe3O4-water over slippery but convectively heated shrinking and stretching surfaces. The model is based on the theoretical concept of magnetohydrodynamics governing the equation of continuity, momentum, energy, and electromagnetism. Based on some realistic assumptions, the nonlinear model differential equations are obtained and numerically tackled using the shooting procedure with the Runge-Kutta-Fehlberg integration scheme. The existent of dual solutions in the specific range of shrinking surface parameters are found. Temporal stability analysis to small disturbances is performed on these dual solutions. It is detected that the upper branch solution is stable, substantially realistic with the smallest positive eigenvalues while the lower branch solution is unstable with the smallest negative eigenvalues. The influence of numerous emerging parameters on the momentum and thermal boundary layer profiles, skin friction, and Nusselt number are depicted graphically and quantitatively discussed. AFRIKAANSE OPSOMMING: Geen Afrikaanse opsomming beskikbaar nie. Masters 2021-11-21T14:21:11Z 2021-12-22T14:23:03Z 2021-11-21T14:21:11Z 2021-12-22T14:23:03Z 2021-12 Thesis http://hdl.handle.net/10019.1/123816 en_ZA Stellenbosch University xii, 74 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Heat transfer Heat -- Transmission Nanofluids Boundary layer (Meteorology) Magnetohydrodynamics (MHD) Nusselt number Runge-Kutta formulas Differential equations, Partial Control theory UCTD Tshivhi, Khodani Sherrif Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems |
| title | Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems |
| title_full | Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems |
| title_fullStr | Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems |
| title_full_unstemmed | Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems |
| title_short | Modelling the impact of Magnetohydrodynamics (MHD) nanofluid flow on cooling of engineering systems |
| title_sort | modelling the impact of magnetohydrodynamics mhd nanofluid flow on cooling of engineering systems |
| topic | Heat transfer Heat -- Transmission Nanofluids Boundary layer (Meteorology) Magnetohydrodynamics (MHD) Nusselt number Runge-Kutta formulas Differential equations, Partial Control theory UCTD |
| url | http://hdl.handle.net/10019.1/123816 |
| work_keys_str_mv | AT tshivhikhodanisherrif modellingtheimpactofmagnetohydrodynamicsmhdnanofluidflowoncoolingofengineeringsystems |