Concentration Distribution in the Wake of a Plane Surface Buried in a Porous Media in Alignment with the Flow Direction

João M.P.Q. Delgado; M. Vázquez da Silva

doi:10.4028/www.scientific.net/DDF.283-286.553

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Some Basic Results and Techniques of Studying Anomalous Diffusion and Segregation in Metals: Relevance to New Nanofabrication Applications
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Concentration Distribution in the Wake of a Plane Surface Buried in a Porous Media in Alignment with the Flow Direction
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Cold-Set Whey Protein Isolate Gels Prepared with Mg²⁺: Denaturing Conditions and Phase Diagram
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Water Sorption Isotherms and Textural Properties of Biodegradable Starch-Based Superabsorbent Polymers
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The Effect of Mg²⁺ and Tara Gum Concentrations on the Rheological Properties of WPI Solutions
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Current-Voltage Measurements on Indium Phosphide Schottky Diodes
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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 283-286Concentration Distribution in the Wake of a Plane...

Concentration Distribution in the Wake of a Plane Surface Buried in a Porous Media in Alignment with the Flow Direction

Abstract:

The present work describes the mass transfer process between a moving fluid and a slightly soluble flat surface buried in a packed bed of small inert particles with uniform voidage, by both advection and diffusion. Numerical solutions of the differential equation describing solute mass conservation were undertaken to obtain the concentration profiles, for each concentration level, the width and downstream length of the corresponding contour surface and the mass transfer flux was integrated to give the Sherwood number as a function of Peclet number. A mathematical expression that relates the dependence with the Peclet number is proposed to describe the approximate size of the diffusion wake downstream of the reactive solid mass.