Cooling a hot semiannulus with constant heat flux by using Fe3o4-Water nanofluid and a magnetic field: natural convection mechanism

Yang, Zhengqiang and Bouzgarrou, S. M. and Marzouki, Riadh and Aouaini, Fatma and El-Shorbagy, M. A. and Dahari, Mahidzal and Shah, Said Anwar and Suthar, D. L. (2022) Cooling a hot semiannulus with constant heat flux by using Fe3o4-Water nanofluid and a magnetic field: natural convection mechanism. Journal of Nanomaterials, 2022. ISSN 1687-4110, DOI https://doi.org/10.1155/2022/4761989.

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Abstract

In this simulation, the nanoparticle distribution and entropy generation were studied using the Buongiorno's developed two-phase model and magnetic field inside a porous semiannulus cavity. The influence of three terms was considered in the Buongiorno's developed two-phase model such as Brownian motion, thermophoresis, and magnetophoresis effects. In addition, the entropy generation was assessed due to temperature and velocity gradient. The evidence showed that the effects of the magnetic field in high porosities and volume fraction of nanoparticles were remarkable on the Nusselt number and entropy generation. Also, irreversibility due to heat transfer is much greater than fluid friction.

Item Type: Article
Funders: Deanship of Scientific Research at King Khalid University [Grant No:PNURSP2022R46], Shaanxi Key Research and Development Plan [Grant No:S2021-YF-YBGY-0708], Princess Nourah bint Abdulrahman University [Grant No:R.G.P.1/157/42]
Uncontrolled Keywords: Nanoscience & NanotechnologyMaterials science, Multidisciplinary
Subjects: Q Science > Q Science (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 11 Oct 2023 03:27
Last Modified: 11 Oct 2023 03:27
URI: http://eprints.um.edu.my/id/eprint/42164

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