Asmadi, Muhammad Solleh and Kasmani, Ruhaila Md. and Siri, Zailan. and Saleh, H. (2021) Thermal performance analysis for moderate Rayleigh numbers of Newtonian hybrid nanofluid-filled U-shaped cavity with various thermal profiles. Physics of Fluids, 33 (3). ISSN 1070-6631, DOI https://doi.org/10.1063/5.0040903.
Full text not available from this repository.Abstract
The numerical study of natural convection heat transfer inside a U-shaped enclosure with various thermal profiles by using copper-alumina/water hybrid nanofluid is reported. The study focuses on the effect of constant, linear, quadratic, and sinusoidal with different amplitudes and periods and absolute sinusoidal thermal profiles to the heat transfer efficiency inside the lid. A weighted residual Galerkin triangular finite element method is used alongside the damped Newton-Raphson algorithm to calculate the heat transfer rate of the system in terms of averaged and local Nusselt number. The result from the present model is compared with the previously published experimental and numerical data. The isotherms and streamlines of the fluid flow for each thermal profile are presented with a nanoparticle volume fraction of between 0 and 0.1 for Rayleigh number of 10(4)-10(6). It is found that the constant heating profile gives the best heat dissipation performance, while the sinusoidal thermal profile performed the worst. The results gained from this paper will be useful in understanding how heat can be transferred effectively as it can be applied to many different industries, including the electronics field.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia[FP020-2020], Ministry of Education, Malaysia[IIRG006C-19IISS] |
| Uncontrolled Keywords: | Convection ; Heat-transfer ; Natural-convection flow ; Enclosure ; Uniform ; Wall ; MHD |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 18 Apr 2022 04:14 |
| Last Modified: | 18 Apr 2022 04:14 |
| URI: | http://eprints.um.edu.my/id/eprint/26735 |
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