Numerical solution of the problem of diffusion of a low-molecular weight substance in a polymer material with a moving phase boundary

A numerical solution of the problem of extraction of a low-molecular-weight solvent from a spherical polymer product with allowance for shrinkage is suggested. The solution is based on passage from a variable region to a fixed one using a difference scheme of a special form developed for the convect...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 1999-05, Vol.72 (3), p.477-481
Main Authors: Aminova, G. A., Manuiko, G. V., D’yakonov, G. S., Sopin, V. F.
Format: Article
Language:English
Subjects:
R&D
Research & development
Studies
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Summary:A numerical solution of the problem of extraction of a low-molecular-weight solvent from a spherical polymer product with allowance for shrinkage is suggested. The solution is based on passage from a variable region to a fixed one using a difference scheme of a special form developed for the convective-diffusion equation in which the convection and diffusion terms vanish with time.[PUBLICATION ABSTRACT]
ISSN:1062-0125
1573-871X
DOI:10.1007/BF02699214