Rarefied relativistic polyatomic gases in a gravitational field

Detalhes bibliográficos
Autor(a) principal: Oliveira, J. M. S.
Data de Publicação: 2022
Outros Autores: Soares, A. J., Ramos, M. P. Machado
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/88149
Resumo: The principal goal of the present paper is to study rarefied relativistic polyatomic gases in both Minkowski spacetime and Robertson-Walker spacetime. The field equations are determined from a recently developed generalized relativistic BGK-type model for polyatomic gases. This model is applied to both Minkowski spacetime and at and non at Robertson-Walker spacetimes. The equation of state for the non-equilibrium dynamical pressure is obtained from the Chapman-Enskog method applied to a variant of the Anderson and Witting model for polyatomic gases.
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spelling Rarefied relativistic polyatomic gases in a gravitational fieldRelativistic fluidsRobertson-Walker space-timeMinkowski space-timePolyatomic gasesKinetic theoryBGK modelsScience & TechnologyThe principal goal of the present paper is to study rarefied relativistic polyatomic gases in both Minkowski spacetime and Robertson-Walker spacetime. The field equations are determined from a recently developed generalized relativistic BGK-type model for polyatomic gases. This model is applied to both Minkowski spacetime and at and non at Robertson-Walker spacetimes. The equation of state for the non-equilibrium dynamical pressure is obtained from the Chapman-Enskog method applied to a variant of the Anderson and Witting model for polyatomic gases.This work is partially supported by the Portuguese FCT Projects UIDB/00013/2020 and UIDP/00013/2020 of CMAT-UM, and by UID/FIS/00099/2020 of CENTRA-IST. The author J. M. S. Oliveira is supported by an FCT post-doctoral grant from the project PTDC/FIS-OUT/28407/2017.SpringerUniversidade do MinhoOliveira, J. M. S.Soares, A. J.Ramos, M. P. Machado20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/88149eng0935-117510.1007/s00161-022-01081-zhttps://link.springer.com/article/10.1007/s00161-022-01081-zinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-20T01:21:19Zoai:repositorium.sdum.uminho.pt:1822/88149Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:52:19.171983Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Rarefied relativistic polyatomic gases in a gravitational field
title Rarefied relativistic polyatomic gases in a gravitational field
spellingShingle Rarefied relativistic polyatomic gases in a gravitational field
Oliveira, J. M. S.
Relativistic fluids
Robertson-Walker space-time
Minkowski space-time
Polyatomic gases
Kinetic theory
BGK models
Science & Technology
title_short Rarefied relativistic polyatomic gases in a gravitational field
title_full Rarefied relativistic polyatomic gases in a gravitational field
title_fullStr Rarefied relativistic polyatomic gases in a gravitational field
title_full_unstemmed Rarefied relativistic polyatomic gases in a gravitational field
title_sort Rarefied relativistic polyatomic gases in a gravitational field
author Oliveira, J. M. S.
author_facet Oliveira, J. M. S.
Soares, A. J.
Ramos, M. P. Machado
author_role author
author2 Soares, A. J.
Ramos, M. P. Machado
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Oliveira, J. M. S.
Soares, A. J.
Ramos, M. P. Machado
dc.subject.por.fl_str_mv Relativistic fluids
Robertson-Walker space-time
Minkowski space-time
Polyatomic gases
Kinetic theory
BGK models
Science & Technology
topic Relativistic fluids
Robertson-Walker space-time
Minkowski space-time
Polyatomic gases
Kinetic theory
BGK models
Science & Technology
description The principal goal of the present paper is to study rarefied relativistic polyatomic gases in both Minkowski spacetime and Robertson-Walker spacetime. The field equations are determined from a recently developed generalized relativistic BGK-type model for polyatomic gases. This model is applied to both Minkowski spacetime and at and non at Robertson-Walker spacetimes. The equation of state for the non-equilibrium dynamical pressure is obtained from the Chapman-Enskog method applied to a variant of the Anderson and Witting model for polyatomic gases.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-01-01T00:00:00Z
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 https://hdl.handle.net/1822/88149
url https://hdl.handle.net/1822/88149
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0935-1175
10.1007/s00161-022-01081-z
https://link.springer.com/article/10.1007/s00161-022-01081-z
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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