The onset of electrothermoconvection in a viscoelastic dielectric fluid layer with internal heat source: Navier-Stokes-Voigt model

Authors

  • Chitresh Kumari Dept. of Mathematics & Statistics, Himachal Pradesh University, Shimla, Himachal Pradesh, 171005, India
  • Jitender Kumar Dept. of Mathematics, Baba Balak Nath College, Chakmoh, Hamirpur, Himachal Pradesh, 176039, India
  • Jyoti Prakash Dept. of Mathematics & Statistics, Himachal Pradesh University, Shimla, Himachal Pradesh, 171005, India

DOI:

https://doi.org/10.24352/UB.OVGU-2024-066

Keywords:

electrothermoconvection, stationary convection, internal heat source, viscoelasticity, dielectric fluid, Navier-Stokes–Voigt model

Abstract

In the present paper, the combined effect of a vertical alternating current (AC) electric field and a vertical temperature gradient on a horizontal layer of viscoelastic dielectric fluid with internal heat source/heat sink has been investigated using Navier-Stokes–Voigt model. A linear stability analysis employing the normal mode technique is conducted in the present problem for free boundaries, considering cases of heating the fluid layer from below and above separately. The effect of the electric field and internal heat source/heat sink is analysed numerically on the fluid system for stationary convection using the software MATHEMATICA and also predicted graphically.

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Published

2024-10-02

How to Cite

Kumari, C., Kumar, J. and Prakash, J. (2024) “The onset of electrothermoconvection in a viscoelastic dielectric fluid layer with internal heat source: Navier-Stokes-Voigt model”, Technische Mechanik - European Journal of Engineering Mechanics, 44(4). doi: 10.24352/UB.OVGU-2024-066.

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