Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects
Research on boundary layer flow and heat transfer has been growing since their importance in industrial and technological processes has been recognized. The boundary layer flow over a horizontally and vertically slender (thin) needle with irregular size has created interest among researchers due to...
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| Format: | Article |
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Elsevier
2021
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| _version_ | 1796983211422646272 |
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| author | Aladdin, Nur Adilah Liyana Bachok @ Lati, Norfifah Pop, Ioan |
| author_facet | Aladdin, Nur Adilah Liyana Bachok @ Lati, Norfifah Pop, Ioan |
| author_sort | Aladdin, Nur Adilah Liyana |
| collection | UPM |
| description | Research on boundary layer flow and heat transfer has been growing since their importance in industrial and technological processes has been recognized. The boundary layer flow over a horizontally and vertically slender (thin) needle with irregular size has created interest among researchers due to its infinite use in biomimetics field, biomedical, aerodynamics, and engineering purposes. The intention here is to study the two-dimensional steady hybrid nanofluid over a slender horizontal needle with water as its base, copper (cu), and alumina oxide (Al2O3) as the combination of nanoparticles in the presence of hydromagnetic and slip effect in the flow. A partial differential equation (PDEs) was set to govern the fluid flow model. Through similarity requirement, the PDE is transformed into ordinary differential equations (ODEs) and analysed using bvp4c in MATLAB 2019a. The influence of hydromagnetic (MHD), M, slip effect, σ, needle thickness, c, and nanoparticle volume fraction, φ on velocity, f ′ (η), temperature, θ(η), skin friction coefficient, Cf and local Nusselt number, Nux are clearly presented. Throughout the study, it shows that duality of solutions presents in a certain range when ԑc < ԑ ≤ − 1 and unique solution at ԑ > − 1. The range on the dual solutions broadens as σ increased, which contradicts with M and c that decreases as both of these values increased. Hence, a stability analysis is imposed. The reduction on skin friction between the needle and fluid can been seen when values of M, σ and c increased. Meanwhile, it also noted that the heat transfer rate on the needle surface increased drastically when σ is increased while opposite trait is found for M and c. hybrid nanofluid possesses better results in increasing the Cf and heat transfer rate compared to nanofluid. |
| first_indexed | 2024-03-06T11:03:16Z |
| format | Article |
| id | upm.eprints-96261 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T11:03:16Z |
| publishDate | 2021 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-962612023-01-31T02:54:31Z http://psasir.upm.edu.my/id/eprint/96261/ Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects Aladdin, Nur Adilah Liyana Bachok @ Lati, Norfifah Pop, Ioan Research on boundary layer flow and heat transfer has been growing since their importance in industrial and technological processes has been recognized. The boundary layer flow over a horizontally and vertically slender (thin) needle with irregular size has created interest among researchers due to its infinite use in biomimetics field, biomedical, aerodynamics, and engineering purposes. The intention here is to study the two-dimensional steady hybrid nanofluid over a slender horizontal needle with water as its base, copper (cu), and alumina oxide (Al2O3) as the combination of nanoparticles in the presence of hydromagnetic and slip effect in the flow. A partial differential equation (PDEs) was set to govern the fluid flow model. Through similarity requirement, the PDE is transformed into ordinary differential equations (ODEs) and analysed using bvp4c in MATLAB 2019a. The influence of hydromagnetic (MHD), M, slip effect, σ, needle thickness, c, and nanoparticle volume fraction, φ on velocity, f ′ (η), temperature, θ(η), skin friction coefficient, Cf and local Nusselt number, Nux are clearly presented. Throughout the study, it shows that duality of solutions presents in a certain range when ԑc < ԑ ≤ − 1 and unique solution at ԑ > − 1. The range on the dual solutions broadens as σ increased, which contradicts with M and c that decreases as both of these values increased. Hence, a stability analysis is imposed. The reduction on skin friction between the needle and fluid can been seen when values of M, σ and c increased. Meanwhile, it also noted that the heat transfer rate on the needle surface increased drastically when σ is increased while opposite trait is found for M and c. hybrid nanofluid possesses better results in increasing the Cf and heat transfer rate compared to nanofluid. Elsevier 2021 Article PeerReviewed Aladdin, Nur Adilah Liyana and Bachok @ Lati, Norfifah and Pop, Ioan (2021) Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects. International Communications in Heat and Mass Transfer, 123. art. no. 105213. pp. 1-11. ISSN 0735-1933; ESSN: 1879-0178 https://www.sciencedirect.com/science/article/pii/S073519332100107X 10.1016/j.icheatmasstransfer.2021.105213 |
| spellingShingle | Aladdin, Nur Adilah Liyana Bachok @ Lati, Norfifah Pop, Ioan Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
| title | Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
| title_full | Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
| title_fullStr | Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
| title_full_unstemmed | Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
| title_short | Boundary layer flow and heat transfer of Cu-Al2O3/water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
| title_sort | boundary layer flow and heat transfer of cu al2o3 water over a moving horizontal slender needle in presence of hydromagnetic and slip effects |
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