Research Article Open Access

Boundary Effect on Marangoni Convection in a Variable Viscosity Fluid Layer

N.Z. Abidin, N.M. Arifin and M.S.M. Noorani

Abstract

The onset of Marangoni convection in a horizontal fluid layer with a free surface overlying a solid layer heated from below is studied. Problem is focused on the effect of the solid layer depth or its conductivity. The viscosity group, Rv, Biot number, Bi, depth ratio, dr and conductivity ratio, kr, are significant on determining the critical Marangoni number Mc with the corresponding critical wavenumber αc. The characteristics problem is solved numerically. Results show that the temperature-dependent viscosity destabilizes the fluid system but it behaves oppositely when a higher relative thermal conductivity ratio or higher depth ratio is taken.

Journal of Mathematics and Statistics
Volume 4 No. 1, 2008, 1-8

DOI: https://doi.org/10.3844/jmssp.2008.1.8

Submitted On: 4 September 2007 Published On: 31 March 2008

How to Cite: Abidin, N., Arifin, N. & Noorani, M. (2008). Boundary Effect on Marangoni Convection in a Variable Viscosity Fluid Layer . Journal of Mathematics and Statistics, 4(1), 1-8. https://doi.org/10.3844/jmssp.2008.1.8

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Keywords

  • Marangoni convection
  • temperature-dependent viscosity