Numerical Study of Turbulent Flows and Convective Heat Transfer of Al2O3-Water Nanofluids In A Circular Tube

Authors

  • Abdelkader Mahammedi Department of Technology, Ziane Achour University of Djelfa, Algeria
  • Houari Ameur Department of Technology, University Centre of Naama, P.O. Box 66, Naama 4500, Algeria
  • Younes Menni Unit of Research on Materials and Renewable Energies, Department of Physics, Faculty of Sciences, Abou Bekr Belkaid University, P.O. Box 119, 13000, Tlemcen, Algeria
  • Driss Meddah Medjahed Department of Technology, University Centre of Naama, P.O. Box 66, Naama 4500, Algeria

DOI:

https://doi.org/10.37934/arfmts.77.2.112

Keywords:

Nanofluid flow, Turbulent flow, Forced convection, Nusselt number, Circular tube

Abstract

The convective heat transfer of Al2O3-water nanofluids through a circular tube with a constant heat flux boundary condition is studied numerically. Turbulent flow conditions are considered with a Reynolds number ranging from 3500 to 20000. The numerical method used is based on the single-phase model. Four volume concentrations of Al2O3-water nanoparticles (0.1, 0.5, 1, and 2%) are used with a diameter of nanoparticle of 40 nm. A considerable increase in Nusselt number, axial velocity, and turbulent kinetic energy was found with increasing Reynolds number and volume fractions. However, the pressure losses were also increased with the raise of Re and nanoparticles concentration.

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Published

2020-11-15

How to Cite

Mahammedi, A., Ameur, H., Menni, Y., & Medjahed, D. M. (2020). Numerical Study of Turbulent Flows and Convective Heat Transfer of Al2O3-Water Nanofluids In A Circular Tube. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 77(2), 1–12. https://doi.org/10.37934/arfmts.77.2.112

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