Effect of homogeneous and heterogeneous reactions on the solute dispersion in composite porous medium | Zendy

J. Prathap Kumar | Zendy; J. C. Umavathi | Zendy; Shivakumar Madhavarao | Zendy

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Effect of homogeneous and heterogeneous reactions on the solute dispersion in composite porous medium

Author(s) -

J. Prathap Kumar,

J. C. Umavathi,

Shivakumar Madhavarao

Publication year - 2012

Publication title -

international journal of engineering science and technology

Language(s) - English

Resource type - Journals

ISSN - 2141-2839

DOI - 10.4314/ijest.v4i2.5

Subject(s) - porous medium , dispersion (optics) , compressibility , materials science , thermodynamics , composite number , taylor dispersion , porosity , viscosity , homogeneous , chemistry , diffusion , composite material , physics , optics

The Taylor dispersion of a solute for composite porous medium between two parallel plates with first-order chemical reaction is studied analytically. The fluids in both the regions are incompressible and the transport properties are assumed to be constant. The results are shown graphically for various values of viscosity ratio, pressure gradient and porous parameter on the effective dispersion coefficient and volumetric flow rate. It is found that for both homogeneous and heterogeneous chemical reactions, the effective dispersion coefficient decreases as porous parameter increases. The validity of the results obtained for composite porous media is verified by comparison with the available porous medium results for one fluid model and good agreement is found. Also two fluid model in the absence of porous matrix is compared with the available one fluid model results and the values tally very well.

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