Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate
The impact of gyrotactic microorganisms in the mixed convection stagnation point flow of Cu-Al2O3/water hybrid nanofluid towards an immovable plate is numerically examined. The boundary layer equation coupled with the energy, nanoparticle volume fraction and conservation equations for microorganisms...
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Elsevier
2021
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my.upm.eprints.968092022-12-01T04:16:47Z http://psasir.upm.edu.my/id/eprint/96809/ Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate Khashi'ie, Najiyah Safwa Md Arifin, Norihan Pop, Ioan Nazar, Roslinda The impact of gyrotactic microorganisms in the mixed convection stagnation point flow of Cu-Al2O3/water hybrid nanofluid towards an immovable plate is numerically examined. The boundary layer equation coupled with the energy, nanoparticle volume fraction and conservation equations for microorganisms are simplified into a set of ordinary differential equations by adopting similarity transformation. The validation results are in a good agreement with previous studies approximately by 0% difference relative error. The results imply that the dual solutions only exist in the opposing flow up to a critical value/turning point. Beyond this turning point, the solutions are unavailable which reflects the separation of flow. The hybrid nanofluid is essential in delaying the separation process where the results show that . Moreover, the advantage of this hybrid Cu-Al2O3/water nanofluid is in the augmentation of heat and mass transfer rates including the density of microorganisms which is higher than the Cu- and Al2O3-water nanofluids. Elsevier 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/96809/1/ABSTRACT.pdf Khashi'ie, Najiyah Safwa and Md Arifin, Norihan and Pop, Ioan and Nazar, Roslinda (2021) Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate. Chinese Journal of Physics, 72. 461 - 474. ISSN 0577-9073 https://www.sciencedirect.com/science/article/pii/S0577907321001167 10.1016/j.cjph.2021.05.011 |
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The impact of gyrotactic microorganisms in the mixed convection stagnation point flow of Cu-Al2O3/water hybrid nanofluid towards an immovable plate is numerically examined. The boundary layer equation coupled with the energy, nanoparticle volume fraction and conservation equations for microorganisms are simplified into a set of ordinary differential equations by adopting similarity transformation. The validation results are in a good agreement with previous studies approximately by 0% difference relative error. The results imply that the dual solutions only exist in the opposing flow up to a critical value/turning point. Beyond this turning point, the solutions are unavailable which reflects the separation of flow. The hybrid nanofluid is essential in delaying the separation process where the results show that . Moreover, the advantage of this hybrid Cu-Al2O3/water nanofluid is in the augmentation of heat and mass transfer rates including the density of microorganisms which is higher than the Cu- and Al2O3-water nanofluids. |
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Article |
author |
Khashi'ie, Najiyah Safwa Md Arifin, Norihan Pop, Ioan Nazar, Roslinda |
spellingShingle |
Khashi'ie, Najiyah Safwa Md Arifin, Norihan Pop, Ioan Nazar, Roslinda Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
author_facet |
Khashi'ie, Najiyah Safwa Md Arifin, Norihan Pop, Ioan Nazar, Roslinda |
author_sort |
Khashi'ie, Najiyah Safwa |
title |
Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
title_short |
Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
title_full |
Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
title_fullStr |
Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
title_full_unstemmed |
Dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
title_sort |
dual solutions of bioconvection hybrid nanofluid flow due to gyrotactic microorganisms towards a vertical plate |
publisher |
Elsevier |
publishDate |
2021 |
url |
http://psasir.upm.edu.my/id/eprint/96809/1/ABSTRACT.pdf http://psasir.upm.edu.my/id/eprint/96809/ https://www.sciencedirect.com/science/article/pii/S0577907321001167 |
_version_ |
1751538258128404480 |
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13.250246 |