Significance of exponential space- and thermal-dependent heat source effects on nanofluid flow due to radially elongated disk with Coriolis and Lorentz forces

Abstract

In this paper, the nanofluid flow near an infinite disk which stretches in the radial direction in the presence of exponential space-based heat source (ESHS) and thermal-based heat source (THS) is investigated. The Brownian motion and thermophoresis effects are accounted to study the nanofluids. Effects of radial magnetism and the Coriolis force are also deployed. The pertinent nonlinear equations are approximated under boundary layer notion and modified von Kármán transformations. The subsequent nonlinear differential system is treated via shooting method. The impacts of controlling parameters on flow profiles are discussed and depicted with the aid of graphs. Results show that as the ESHS and THS parameters increase, the thermal field increases. However, ESHS phenomenon is highly influential than THS phenomenon on energy transport and its gradient. Further, it is found that thermophoresis slip mechanism has more effect on heat transport rate than the Brownian motion.

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Acknowledgements

The author (B Mahanthesh) is thankful to the Management of CHRIST (Deemed to be University), Bangalore, India, for their support to complete this research work. We would also like to thank the Editor and the anonymous reviewers for their constructive suggestions.

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Correspondence to Giulio Lorenzini.

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Mahanthesh, B., Lorenzini, G., Oudina, F.M. et al. Significance of exponential space- and thermal-dependent heat source effects on nanofluid flow due to radially elongated disk with Coriolis and Lorentz forces. J Therm Anal Calorim 141, 37–44 (2020). https://doi.org/10.1007/s10973-019-08985-0

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Keywords

  • Rotating disk
  • Nanofluid
  • Exponential heat source
  • Buongiorno model
  • Radial magnetic field
  • Shooting method