Thermal instability of rotating Jeffrey nanofluids in porous media with variable gravity

Authors

  • Pushap Lata Sharma Department of Mathematics & Statistics, Himachal Pradesh University, Summer Hill, Shimla, India
  • Deepak Bains Department of Mathematics & Statistics, Himachal Pradesh University, Summer Hill, Shimla, India
  • Pankaj Thakur aculty of Science and Technology, ICFAI University, Baddi, Solan, India https://orcid.org/0000-0001-8119-2697

Keywords:

nanofluid, variable gravity, porous medium, Galerkin method, rotation

Abstract

It is investigated how changes in gravity affect the thermal instability rotating Jeffrey nanofluids in porous media. Along with the Galerkin method and normal mode approach, the Darcy model is used. The distinct variable gravity parameters taken in this paper are: h(z)=z2-2z, h(z)=-z2, h(z)=-z and h(z)=z and their effects on the Jeffrey parameter, Taylor number, moderated diffusivity ratio, porosity of porous media, Lewis number and nanoparticle Rayleigh number on stationary convection have been scrutinized and graphically shown. Our finding demonstrates that varying gravity parameter h(z)=z2-2z has more stabilising impact on stationary convection. We have also discovered the necessary condition for overstability in the instance of oscillatory convection for this problem.

Dimensions

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Published

2023-05-20

How to Cite

Thermal instability of rotating Jeffrey nanofluids in porous media with variable gravity. (2023). Journal of the Nigerian Society of Physical Sciences, 5(2), 1366. https://doi.org/10.46481/jnsps.2023.1366

Issue

Volume 5, Issue 2, May 2023

Section

Original Research
Copyright & Licensing

Copyright (c) 2023 Pushap Lata Sharma, Deepak Bains, Pankaj Thakur

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Thermal instability of rotating Jeffrey nanofluids in porous media with variable gravity. (2023). Journal of the Nigerian Society of Physical Sciences, 5(2), 1366. https://doi.org/10.46481/jnsps.2023.1366