Vol. 14 No. 3 (2015): Mapana Journal of Sciences
Research Articles

Effects of Suction–Injection–Combination (SIC) on the onset of Rayleigh–Bénard Electroconvection in a Micropolar Fluid

  • S Pranesh,
  • Tarannum Sameena,
  • Baby Riya
S Pranesh
Department of Mathematics, Christ University, Bangalore, India
Bio
Tarannum Sameena
Department of Professional Studies, Christ University, Bangalore, India
Bio
Baby Riya
Research Scholar, Department of Mathematics, Christ University, Bangalore,
Bio
DOI: https://doi.org/10.12723/mjs.34.5

Published 2021-08-28

Keywords

  • Micropolar fluids,
  • Rayleigh–Bénard convection,
  • Suction–injection–combination and electroconvection.

Copyright (c) 2015

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Abstract

The effect of Suction – injection combination on the onset of Rayleigh – Bénard electroconvection micropolar fluid is investigated by making a linear stability analysis. The Rayleigh-Ritz technique is used to obtain the eigenvalues for different velocity and temperature boundary combinations. The influence of various parameters on the onset of convection has been analysed. It is found that the effect of Prandtl number on the stability of the system is dependent on the SIC being pro-gravity or anti-gravity. A similar Pe-sensitivity is found in respect of the critical wave number. It is observed that the fluid layer with suspended particles heated from below is more stable compared to the classical fluid layer without suspended particles.

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