Damping and clustering into crowded environment of catalytic chemical oscillators
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.physa.2018.11.004 http://hdl.handle.net/11449/188385 |
Resumo: | A system formed by a crowded environment of catalytic obstacles and complex oscillatory chemical reactions is studied. The obstacles are static spheres of equal radius, which are placed in a random way. The chemical reactions are carried out in a fluid following a multiparticle collision scheme where the mass, energy and local momentum are conserved. Firstly, it is explored how the presence of catalytic obstacles changes the oscillatory dynamics from a limit cycle to a fixed point reached after a damping. The damping is characterized by the decay constant, which grows linearly with volume fraction for low values of the mesoscale collision time and the catalytic reaction constant. Additionally, it is shown that, although the distribution of obstacles is random, there are regions in the system where the catalytic chemical reactions are favored. This entails that in average the radius of gyrations of catalytic chemical reaction does not match with the radius of gyration of obstacles, that is, clusters of reactions emerge on the catalytic obstacles, even when the diffusion is significant. |
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Damping and clustering into crowded environment of catalytic chemical oscillatorsClustering effectsCrowded environmentDamping in chemical reactionReactive multiparticle collisionSelkov reactionA system formed by a crowded environment of catalytic obstacles and complex oscillatory chemical reactions is studied. The obstacles are static spheres of equal radius, which are placed in a random way. The chemical reactions are carried out in a fluid following a multiparticle collision scheme where the mass, energy and local momentum are conserved. Firstly, it is explored how the presence of catalytic obstacles changes the oscillatory dynamics from a limit cycle to a fixed point reached after a damping. The damping is characterized by the decay constant, which grows linearly with volume fraction for low values of the mesoscale collision time and the catalytic reaction constant. Additionally, it is shown that, although the distribution of obstacles is random, there are regions in the system where the catalytic chemical reactions are favored. This entails that in average the radius of gyrations of catalytic chemical reaction does not match with the radius of gyration of obstacles, that is, clusters of reactions emerge on the catalytic obstacles, even when the diffusion is significant.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidad de Los Andes VenezuelaCeSiMo Facultad de Ingeniería Universidad de Los AndesICTP South American Institute for Fundamental Research IFT-UNESPGrupo de Investigación de Simulación Modelado Análisis y Accesibilidad Universidad Católica de CuencaUnidad Académica de Ingeniería en Nanotecnología Universidad Politécnica de Sinaloa MazatlánSUMA Facultad de Ciencias Universidad de Los AndesICTP South American Institute for Fundamental Research IFT-UNESPFAPESP: 2016/01343-7FAPESP: 2017/00344-2Universidad de Los Andes Venezuela: C-1804-12-05-B]Universidad de Los AndesUniversidade Estadual Paulista (Unesp)Universidad Católica de CuencaMazatlánEcheverria, CarlosHerrera, José L. [UNESP]Alvarez-Llamoza, OrlandoMorales, MiguelTucci, Kay2019-10-06T16:06:20Z2019-10-06T16:06:20Z2019-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article297-306http://dx.doi.org/10.1016/j.physa.2018.11.004Physica A: Statistical Mechanics and its Applications, v. 517, p. 297-306.0378-4371http://hdl.handle.net/11449/18838510.1016/j.physa.2018.11.0042-s2.0-85056805589Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysica A: Statistical Mechanics and its Applicationsinfo:eu-repo/semantics/openAccess2021-10-22T21:16:17Zoai:repositorio.unesp.br:11449/188385Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T21:16:17Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Damping and clustering into crowded environment of catalytic chemical oscillators |
title |
Damping and clustering into crowded environment of catalytic chemical oscillators |
spellingShingle |
Damping and clustering into crowded environment of catalytic chemical oscillators Echeverria, Carlos Clustering effects Crowded environment Damping in chemical reaction Reactive multiparticle collision Selkov reaction |
title_short |
Damping and clustering into crowded environment of catalytic chemical oscillators |
title_full |
Damping and clustering into crowded environment of catalytic chemical oscillators |
title_fullStr |
Damping and clustering into crowded environment of catalytic chemical oscillators |
title_full_unstemmed |
Damping and clustering into crowded environment of catalytic chemical oscillators |
title_sort |
Damping and clustering into crowded environment of catalytic chemical oscillators |
author |
Echeverria, Carlos |
author_facet |
Echeverria, Carlos Herrera, José L. [UNESP] Alvarez-Llamoza, Orlando Morales, Miguel Tucci, Kay |
author_role |
author |
author2 |
Herrera, José L. [UNESP] Alvarez-Llamoza, Orlando Morales, Miguel Tucci, Kay |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidad de Los Andes Universidade Estadual Paulista (Unesp) Universidad Católica de Cuenca Mazatlán |
dc.contributor.author.fl_str_mv |
Echeverria, Carlos Herrera, José L. [UNESP] Alvarez-Llamoza, Orlando Morales, Miguel Tucci, Kay |
dc.subject.por.fl_str_mv |
Clustering effects Crowded environment Damping in chemical reaction Reactive multiparticle collision Selkov reaction |
topic |
Clustering effects Crowded environment Damping in chemical reaction Reactive multiparticle collision Selkov reaction |
description |
A system formed by a crowded environment of catalytic obstacles and complex oscillatory chemical reactions is studied. The obstacles are static spheres of equal radius, which are placed in a random way. The chemical reactions are carried out in a fluid following a multiparticle collision scheme where the mass, energy and local momentum are conserved. Firstly, it is explored how the presence of catalytic obstacles changes the oscillatory dynamics from a limit cycle to a fixed point reached after a damping. The damping is characterized by the decay constant, which grows linearly with volume fraction for low values of the mesoscale collision time and the catalytic reaction constant. Additionally, it is shown that, although the distribution of obstacles is random, there are regions in the system where the catalytic chemical reactions are favored. This entails that in average the radius of gyrations of catalytic chemical reaction does not match with the radius of gyration of obstacles, that is, clusters of reactions emerge on the catalytic obstacles, even when the diffusion is significant. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:06:20Z 2019-10-06T16:06:20Z 2019-03-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.physa.2018.11.004 Physica A: Statistical Mechanics and its Applications, v. 517, p. 297-306. 0378-4371 http://hdl.handle.net/11449/188385 10.1016/j.physa.2018.11.004 2-s2.0-85056805589 |
url |
http://dx.doi.org/10.1016/j.physa.2018.11.004 http://hdl.handle.net/11449/188385 |
identifier_str_mv |
Physica A: Statistical Mechanics and its Applications, v. 517, p. 297-306. 0378-4371 10.1016/j.physa.2018.11.004 2-s2.0-85056805589 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physica A: Statistical Mechanics and its Applications |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
297-306 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046446906212352 |