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
Autores principales: Viollaz, P.E., Rovedo, C.O., Suarez, C.
Formato: JOUR
Materias:
Analysis-Mathematical
Diffusion
Shrinkage
Solids
Swelling
Acceso en línea: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
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spelling todo:paper_07351933_v22_n4_p527_Viollaz2023-10-03T15:37:40Z Numerical treatment of transient diffussion in shrinking or swelling solids Viollaz, P.E. Rovedo, C.O. Suarez, C. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Viollaz, P.E.
Rovedo, C.O.
Suarez, C.
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.
format JOUR
author Viollaz, P.E.
Rovedo, C.O.
Suarez, C.
author_facet Viollaz, P.E.
Rovedo, C.O.
Suarez, C.
author_sort Viollaz, P.E.
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
url http://hdl.handle.net/20.500.12110/paper_07351933_v22_n4_p527_Viollaz
work_keys_str_mv AT viollazpe numericaltreatmentoftransientdiffussioninshrinkingorswellingsolids
AT rovedoco numericaltreatmentoftransientdiffussioninshrinkingorswellingsolids
AT suarezc numericaltreatmentoftransientdiffussioninshrinkingorswellingsolids
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