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Hybrid Nanofluid Flow and Thermal Transport Analysis in a Linearly Heated Cylindrical Annulus

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Advances in Mathematical Modeling and Scientific Computing (ICRDM 2022)

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Abstract

The current numerical investigation aims to study buoyancy-driven convection of hybrid nanofluids in an annular enclosure formed by two vertical concentric cylinders. In this analysis, hybrid nanofluid containing water and Ag-MgO nanoparticles has been taken as the working medium in the annular domain. The outer wall of the annulus is maintained at lower temperature and adiabatic condition at the horizontal walls of the annulus has been considered. However, along the inner wall, two different thermal conditions are imposed. For Case-I, a linear temperature profile has been considered, and for Case-II, a uniform temperature has been considered. For both the linear and uniform heating, the impact of Rayleigh number, nanoparticle concentration, and different proportions of nanoparticles on fluid flow and thermal transport characteristics in the vertical annulus has been addressed. The numerical simulations are performed for a vast range of parameters to examine fluid flow and thermal transport characteristics in the annular enclosure. The results are represented graphically through flow and thermal contours, and local and average Nusselt numbers. It is noticed that the presence of nanoparticles greatly helps in enhancing the heat removal rate in the annulus. In addition, several numerical computations have been carried out to identify the optimum thermal boundary condition to achieve enhanced heat transport rate.

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Acknowledgments

NKR acknowledges the support from Ulsan National Institute of Science and Technology, Republic of Korea. HAKS sincerely acknowledges Kyungpook National University, Republic of Korea for the support and encouragement. MS acknowledges the financial support of UTAS, Ibri, Oman, under the Internal Research Funding via Project No. DSR-IRPS-2021-22-PROP-1.

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea

    N. Keerthi Reddy

  2. Department of Electrical Engineering, UTAS-Higher College of Technology, Muscat, Oman

    Nagaraj Harthikote

  3. Department of Information Technology, University of Technology and Applied Sciences, Ibri, Oman

    M. Sankar

  4. Department of Mathematics, Kyungpook National University, Daegu, Korea (Republic of)

    H. A. Kumara Swamy

Authors
  1. N. Keerthi Reddy
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  2. Nagaraj Harthikote
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  3. M. Sankar
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  4. H. A. Kumara Swamy
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Editor information

Editors and Affiliations

  1. Department of Electrical Engineering, Canadian University Dubai, Dubai, United Arab Emirates

    Firuz Kamalov

  2. Department of Mathematics, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, India

    R. Sivaraj

  3. Department of Mathematical Sciences, United Arab Emirates University, Al Ain, United Arab Emirates

    Ho-Hon Leung

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Reddy, N.K., Harthikote, N., Sankar, M., Swamy, H.A.K. (2024). Hybrid Nanofluid Flow and Thermal Transport Analysis in a Linearly Heated Cylindrical Annulus. In: Kamalov, F., Sivaraj, R., Leung, HH. (eds) Advances in Mathematical Modeling and Scientific Computing. ICRDM 2022. Trends in Mathematics. Birkhäuser, Cham. https://doi.org/10.1007/978-3-031-41420-6_28

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