Rotating Flow in a Nanofluid with CNT Nanoparticles over a Stretching/Shrinking Surface

Nor Azizah Yacob, Nor Fadhilah Dzulkifli, Siti Nur Alwani Salleh, Anuar Ishak and Ioan Pop
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Nor Azizah Yacob: Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA Pahang, Jengka 26460, Pahang, Malaysia
Nor Fadhilah Dzulkifli: Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA Pahang, Jengka 26460, Pahang, Malaysia
Siti Nur Alwani Salleh: Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA Kedah, Merbok 08400, Kedah, Malaysia
Anuar Ishak: Department of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
Ioan Pop: Department of Mathematics, Babeş-Bolyai University, 400578 Cluj-Napoca, Romania

Mathematics, 2021, vol. 10, issue 1, 1-20

Abstract: The steady three-dimensional rotating flow past a stretching/shrinking surface in water and kerosene-based nanofluids containing single and multi-walled carbon nanotubes (CNTs) is investigated. The governing equations are converted to similarity equations, and then numerically solved using MATLAB software. The impacts of rotational, suction, and nanoparticle volume fraction on the flow and the thermal fields, as well as velocity and temperature gradients at the surface, are represented graphically and are analyzed. Further, the friction factor and the heat transfer rate for different parameters are presented in tables. It is found that the heat transfer rate increases with increasing nanoparticle volume fraction as well as suction parameter in water and kerosene-based nanofluids of single and multi-walled CNTs. However, the increment in the rotating flow parameter decreases the rate of heat transfer. Multi-walled carbon nanotubes and kerosene-based nanofluid contribute to heat transfer rates better than single-walled carbon nanotubes and water-based nanofluid, respectively. A unique solution exists for the stretching surface, while two solutions are obtained for the shrinking surface. Further analysis of their stabilities shows that only one of them is stable over time.

Keywords: carbon nanotubes; heat transfer; nanofluid; rotating; stretching/shrinking (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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