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Effect of Fluctuating Surface Heat and Mass Flux on Natural Convection Flow along a Vertical Flat Plate

Author

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  • Sharmina Hussain
  • Nepal C. Roy
  • Md. Anwar Hossain
  • Suvash C. Saha

Abstract

An investigation has been carried on double diffusive effect on boundary layer flow due to small amplitude oscillation in surface heat and mass flux. Extensive parametric simulations were performed in order to elucidate the effects of some important parameters, that is, Prandtl number, Schmidt number, and Buoyancy ratio parameter on flow field in conjunction with heat and mass transfer. Asymptotic solutions for low and high frequencies are obtained for the conveniently transformed governing coupled equations. Solutions are also obtained for wide ranged value of the frequency parameters. Comparisons between the asymptotic and wide ranged values are made in terms of the amplitudes and phases of the shear stress, surface heat transfer, and surface mass transfer. It has been found that the amplitudes and phase angles obtained from asymptotic solutions are found in good agreement with the finite difference solutions obtained for wide ranged value of the frequency parameter.

Suggested Citation

  • Sharmina Hussain & Nepal C. Roy & Md. Anwar Hossain & Suvash C. Saha, 2015. "Effect of Fluctuating Surface Heat and Mass Flux on Natural Convection Flow along a Vertical Flat Plate," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-15, November.
    • Handle: RePEc:hin:jnlmpe:258016
    DOI: 10.1155/2015/258016
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