Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process

We investigate the diffusion of two different species in a semi-infinite medium considering the presence of linear reaction terms. The dynamics for these species is governed by fractional diffusion equations. We also consider the presence of an adsorption-desorption boundary condition. The solutions...

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Main Authors: Maike A. F. dos Santos, Marcelo K. Lenzi, Ervin K. Lenzi
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Advances in Mathematical Physics
Online Access:http://dx.doi.org/10.1155/2017/6361598
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author Maike A. F. dos Santos
Marcelo K. Lenzi
Ervin K. Lenzi
author_facet Maike A. F. dos Santos
Marcelo K. Lenzi
Ervin K. Lenzi
author_sort Maike A. F. dos Santos
collection DOAJ
description We investigate the diffusion of two different species in a semi-infinite medium considering the presence of linear reaction terms. The dynamics for these species is governed by fractional diffusion equations. We also consider the presence of an adsorption-desorption boundary condition. The solutions for this system are found in terms of the H function of Fox and by analyzing the behavior of the mean square displacement a rich class of diffusion processes is verified. In this sense, we show how the surface effects modify the bulk dynamics and promote an anomalous diffusion of system.
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institution Kabale University
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publishDate 2017-01-01
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series Advances in Mathematical Physics
spelling doaj-art-6a19100b7d8646d19689d6477a9161e02025-02-03T05:49:33ZengWileyAdvances in Mathematical Physics1687-91201687-91392017-01-01201710.1155/2017/63615986361598Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption ProcessMaike A. F. dos Santos0Marcelo K. Lenzi1Ervin K. Lenzi2Departamento de Fisica, Universidade Estadual de Ponta Grossa, Avenida General Carlos Cavalcanti 4748, Ponta Grossa, PR, BrazilDepartamento de Engenharia Qumica, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, 210 Jardim das Americas, 81531-990 Curitiba, PR, BrazilDepartamento de Fisica, Universidade Estadual de Ponta Grossa, Avenida General Carlos Cavalcanti 4748, Ponta Grossa, PR, BrazilWe investigate the diffusion of two different species in a semi-infinite medium considering the presence of linear reaction terms. The dynamics for these species is governed by fractional diffusion equations. We also consider the presence of an adsorption-desorption boundary condition. The solutions for this system are found in terms of the H function of Fox and by analyzing the behavior of the mean square displacement a rich class of diffusion processes is verified. In this sense, we show how the surface effects modify the bulk dynamics and promote an anomalous diffusion of system.http://dx.doi.org/10.1155/2017/6361598
spellingShingle Maike A. F. dos Santos
Marcelo K. Lenzi
Ervin K. Lenzi
Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process
Advances in Mathematical Physics
title Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process
title_full Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process
title_fullStr Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process
title_full_unstemmed Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process
title_short Anomalous Diffusion with an Irreversible Linear Reaction and Sorption-Desorption Process
title_sort anomalous diffusion with an irreversible linear reaction and sorption desorption process
url http://dx.doi.org/10.1155/2017/6361598
work_keys_str_mv AT maikeafdossantos anomalousdiffusionwithanirreversiblelinearreactionandsorptiondesorptionprocess
AT marceloklenzi anomalousdiffusionwithanirreversiblelinearreactionandsorptiondesorptionprocess
AT ervinklenzi anomalousdiffusionwithanirreversiblelinearreactionandsorptiondesorptionprocess