Numerical treatment of transient diffussion in shrinking or swelling solids

The diffusion equation for solids that undergo change of volume was numerically integrated, using a frame of reference fixed to the volume average velocity of the system. Numerical solutions are reported for absorption and desorption processes in swelling and shrinking systems, respectively, with sl...

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Detalles Bibliográficos
Autor principal: Rovedo, Clara Ofelia
Publicado: 1995
Materias:
Analysis-Mathematical
Diffusion
Shrinkage
Solids
Swelling
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07351933_v22_n4_p527_Viollaz
http://hdl.handle.net/20.500.12110/paper_07351933_v22_n4_p527_Viollaz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_07351933_v22_n4_p527_Viollaz
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spelling paper:paper_07351933_v22_n4_p527_Viollaz2023-06-08T15:44:04Z Numerical treatment of transient diffussion in shrinking or swelling solids Rovedo, Clara Ofelia Analysis-Mathematical Diffusion Shrinkage Solids Swelling The diffusion equation for solids that undergo change of volume was numerically integrated, using a frame of reference fixed to the volume average velocity of the system. Numerical solutions are reported for absorption and desorption processes in swelling and shrinking systems, respectively, with slab, cylindrical or spherical geometry. Uniform initial concentration, constant surface concentration, symmetry with respect to the centre, central axis or central plane of the system and diffusion coefficient independent on diffusant concentration were assumed. Plots in terms of dimensionless concentration of diffusant versus Fourier number based on the initial half-thickness of the system are reported, covering different concentration ranges of diffusant. © 1995. Fil:Rovedo, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1995 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07351933_v22_n4_p527_Viollaz http://hdl.handle.net/20.500.12110/paper_07351933_v22_n4_p527_Viollaz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Analysis-Mathematical
Diffusion
Shrinkage
Solids
Swelling
spellingShingle Analysis-Mathematical
Diffusion
Shrinkage
Solids
Swelling
Rovedo, Clara Ofelia
Numerical treatment of transient diffussion in shrinking or swelling solids
topic_facet Analysis-Mathematical
Diffusion
Shrinkage
Solids
Swelling
description The diffusion equation for solids that undergo change of volume was numerically integrated, using a frame of reference fixed to the volume average velocity of the system. Numerical solutions are reported for absorption and desorption processes in swelling and shrinking systems, respectively, with slab, cylindrical or spherical geometry. Uniform initial concentration, constant surface concentration, symmetry with respect to the centre, central axis or central plane of the system and diffusion coefficient independent on diffusant concentration were assumed. Plots in terms of dimensionless concentration of diffusant versus Fourier number based on the initial half-thickness of the system are reported, covering different concentration ranges of diffusant. © 1995.
author Rovedo, Clara Ofelia
author_facet Rovedo, Clara Ofelia
author_sort Rovedo, Clara Ofelia
title Numerical treatment of transient diffussion in shrinking or swelling solids
title_short Numerical treatment of transient diffussion in shrinking or swelling solids
title_full Numerical treatment of transient diffussion in shrinking or swelling solids
title_fullStr Numerical treatment of transient diffussion in shrinking or swelling solids
title_full_unstemmed Numerical treatment of transient diffussion in shrinking or swelling solids
title_sort numerical treatment of transient diffussion in shrinking or swelling solids
publishDate 1995
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07351933_v22_n4_p527_Viollaz
http://hdl.handle.net/20.500.12110/paper_07351933_v22_n4_p527_Viollaz
work_keys_str_mv AT rovedoclaraofelia numericaltreatmentoftransientdiffussioninshrinkingorswellingsolids
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