International Journal of Dynamics of Fluids
  • Year: 2010
  • Volume: 6
  • Issue: 1

Thermo-Diffusion and Diffusion –Thermo Effects on Convective Heat and Mass Transfer through a Porous Medium in a Circular Cylindrical Annulus with Quadratic Density Temperature Variation – A Finite Element Study

  • Author:
  • P. Sudarsan Reddy1, K.V. Suryanarayana Rao2, DRV. Prasada Rao3, E. Mamatha4
  • Total Page Count: 10
  • Page Number: 97 to 106

1Dept of Mathematics, RGM Engg. College, Nandyal, JNTU Anantapur, India.

2Dept of Mathematics, RGM Engg. College, Nandyal, JNTU Anantapur, India.

3Dept of Mathematics, SK University, Anantapur, India.

4Dept of Mathematics, Syamaladevi Engg. College, Nandyal, JNTU Anatapur, India.

Abstract

The heat and mass transfer characteristics of mixed convection about a circular cylindrical annulus in a porous medium, by taking into account the Thermo-Diffusion (Soret) and Diffusion –Thermo (Dufour) effects. The governing partial differential equations are transformed into a set of coupled ordinary differential equations, which are evaluated numerically by using a finite element method. The velocity, temperature and concentration profiles are presented graphically for various values of the parameters G, D−1, Sc, Sr, N, and Du.

Keywords

heat transfer, mass transfer, Soret effects, Dufour effect, Quadratic temperature variation