Khan, Amir Yaseen and Mkhatshwa, Musawenkhosi Patson and Mondal, Sabyasachi and Khumalo, Melusi and Noor, Noor Fadiya Mohd (2024) An overlapping grid spectral collocation analysis on a newly developed hybrid nano fl uid fl ow model. Propulsion and Power Research, 13 (1). pp. 98-117. ISSN 2212-540X, DOI https://doi.org/10.1016/j.jppr.2023.12.001.
Full text not available from this repository.Abstract
The present study investigates the axisymmetric stagnation point radiative flow of a Cu-Al 2 O 3 /water hybrid nanofluid over a radially stretched/shrunk disk. In this paper, a new mathematical model has been developed by taking into consideration the concept of different nanoparticles concentration in a hybrid nanofluid, which are Brownian motion and thermophoresis of nanoparticles. A new model for entropy generation has also been provided in the present study. The non -dimensional governing equations of the developed mathematical model are solved using newly developed and efficient overlapping grid spectral collocation method. Numerical stability and residual error test are provided here to show the accuracy of the numerical method in this mathematical model. The outcomes of fluid flow, temperature, and two different types of concentration profiles are depicted, and described in graphical and tabular forms. For the limiting instances, comparison shows excellent agreement among current and results established in the literature. Increasing the strength of magnetic field is seen to increase the radial component of fluid velocity as well as the entropy generated within the system. Two different nanofluid concentration profiles are increasing and decreasing with rising thermophoresis and Brownian motion parameters, respectively, from a particular height above the disk because of the revised nanofluid boundary condition. Temperature profile increases here with increasing Biot number, and increasing Brinkman number causes higher entropy generation number for both stretching and shrinking disks. The enhanced thermal characteristics of the hybrid nanofluid over the single particle nanofluid has been observed. <feminine ordinal indicator> 2024 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY -NC -ND license (http://creativecommons.org/licenses/bync-nd/4.0/).
| Item Type: | Article |
|---|---|
| Funders: | North-Eastern Hill University, Shillong, Meghalaya, India, University of South Africa, Corner Christian de Wet and Pioneer Avenue, Florida Park, Roodepoort, South Africa |
| Uncontrolled Keywords: | Axisymmetric fl ow; Hybrid nano fl uid; Thermal radiation; Overlapping grid method; Entropy generation |
| Subjects: | Q Science > QA Mathematics |
| Divisions: | Faculty of Science > Institute of Mathematical Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 25 Oct 2024 08:02 |
| Last Modified: | 25 Oct 2024 08:02 |
| URI: | http://eprints.um.edu.my/id/eprint/45513 |
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