Hybrid nanofluid stagnation point flow past a slip shrinking Riga plate

Wahid, Nur Syahirah and Md Arifin, Norihan and Khashi'ie, Najiyah Safwa and Pop, Ioan and Bachok, Norfifah and Hafidzuddin, Mohd Ezad Hafidz (2022) Hybrid nanofluid stagnation point flow past a slip shrinking Riga plate. Chinese Journal of Physics, 78. pp. 180-193. ISSN 0577-9073

Text WAHID ET AL. 2022-CJPH.PDF-RIGA.PDF Download (1MB)

Abstract

Magnetic nanofluids cover many of uses since their characteristics are externally controllable, and their physical properties may vary with the nanoparticle volume fraction and magnetic field strength. Hybrid nanofluid also has been commercialized as the advancement of traditional nanofluid. The preliminary research on hybrid magnetic nanofluids inspired the present study to discover the stagnation-point flow of hybrid magnetite-cobalt ferrite/water nanofluid towards a shrinking Riga plate with the presence of velocity slip. The complex governing model of the flow is simplified by implementing the similarity transformation. A well-established numerical package, namely bvp4c in MATLAB, is used for numerical calculation as well as stability analysis. Two solutions are found due to the opposing flow from the shrinking Riga plate. From the stability analysis, the first solution which fulfills the boundary condition is the physically stable solution. The rising values of electromagnetohydrodynamic (EMHD) parameter and cobalt ferrite concentration augment the skin friction coefficient. Specifically, the critical point is lessened by 3% when the EMHD parameter is augmented from 0.3 to 0.5 and 0.5 to 0.7, which concludes that a suitably higher EMHD parameter could prevent the separation of the boundary layer. The heat transfer progress is actively performed with the enhancement of EMHD and velocity slip parameters which conclusively shows the suitability of these parameters in developing the cooling heat transfer fluid.

Item Type:	Article
Uncontrolled Keywords:	Hybrid nanofluid, Riga plate, Stagnation point flow, Shrinking, Velocity slip
Divisions:	Faculty of Mechanical and Manufacturing Engineering Technology
Depositing User:	mr eiisaa ahyead
Date Deposited:	13 Feb 2023 16:26
Last Modified:	23 Feb 2023 16:21
URI:	http://eprints.utem.edu.my/id/eprint/26233
Statistic Details:	View Download Statistic

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