• DISPERSION OF A SOLUTE IN MAGNETOHYDRODYNAMIC TWO FLUID FLOW WITH HOMOGENEOUS AND HETEROGENEOUS CHEMICAL REACTIONS

Abstract

The effect of homogeneous and heterogeneous reactions on the dispersion of a solute in a magnetohydrodynamic two fluid flow between two parallel plates is studied. The fluids in both the regions of the channel are incompressible and transport properties are assumed to be constant. The results are tabulated for various values of viscosity ratio, pressure gradient and Hartmann number on the effective dispersion coefficient and volumetric flow rate. The effective dispersion coefficient decreases with increase in the Hartmann number in the absence of chemical reactions. It is found that for first order homogeneous and heterogeneous chemical reaction, the effective dispersion coefficient decreases as the reaction rate parameter and Hartmann number increases. The validity of the results obtained for magnetohydrodyanmic two fluid model is compared with the available one fluid model for clear viscous fluid and good agreement is found.