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Thermal progress of unsteady separated stagnation point flow with magnetic field and heat generation in hybrid ferrofluid


Khashi’ie, Najiyah Safwa and Waini, Iskandar and Zainal, Nurul Amira and Hamzah, Khairum and Mohd Kasim, Abdul Rahman and Md Arifin, Norihan and Pop, Ioan (2022) Thermal progress of unsteady separated stagnation point flow with magnetic field and heat generation in hybrid ferrofluid. Nanomaterials, 12 (18). art. no. 3205. pp. 1-15. ISSN 2079-4991


This paper examines the unsteady separated stagnation point (USSP) flow and thermal progress of Fe3O4–CoFe2O4/H2O on a moving plate subject to the heat generation and MHD effects. The model of the flow includes the boundary layer and energy equations. These equations are then simplified with the aid of similarity variables. The numerical results are generated by the bvp4c function and then presented in graphs and tables. The magnetic and acceleration (strength of the stagnation point flow) parameters are the contributing factors in the augmentation of the skin friction and heat transfer coefficients. However, the enhancement of heat generation parameter up to 10% shows a reduction trend in the thermal rate distribution of Fe3O4–CoFe2O4/H2O. This finding reveals the effectiveness of heat absorption as compared to the heat generation in the thermal flow process. From the stability analysis, the first solution is the physical solution. The streamline for the first solution acts as a normal stagnation point flow, whereas the second solution splits into two regions, proving the occurrence of reverse flow.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute for Mathematical Research
DOI Number: https://doi.org/10.3390/nano12183205
Publisher: Multidisciplinary Digital Publishing Institute
Keywords: Hybrid ferrofluid; Heat generation; Magnetic field; Separated stagnation point; Streamline; Unsteady flow
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 02 May 2023 06:17
Last Modified: 02 May 2023 06:17
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/nano12183205
URI: http://psasir.upm.edu.my/id/eprint/103713
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