Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-11-14
Physics
Condensed Matter
Other Condensed Matter
4 pages, 2 figs, submitted to Proceedings of the 1-st International Conference on Diffusion in Solids and Liquids DSL-2005, Ju
Scientific paper
The reversible reactions like A+B <-> C in the many-component diffusive system affect the diffusive properties of the constituents. The effective conjugation of irreversible processes of different dimensionality takes place due to the stationarity in the system and can lead to essential increase of the resulting diffusive fluxes. The exact equations for the spatial concentration profiles of the components are difficult to treat analytically. We solve approximately the equations for the concentration profiles of the reaction-diffusion components in the spherical geometry in the application to the problem of the enhanced oxygen transfer through a biological membrane and to the mathematically similar problem of surface diffusion in a solid body. In the latter case the spherical geometry can be an adequate tool for describing the surface of a real solid body which can be modeled as a fractal object formed of sequences of spherical surfaces with different radii.
Shpyrko Serge
Sysoev Vladimir M.
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