Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium

Autores
Saldía, Juan P.; Elaskar, Sergio A.; Tamagno, Jose P.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Fil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Saldía, Juan P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Elaskar, Sergio A. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Elaskar, Sergio A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
In this paper, a finite difference scheme for the solution of the unsteady and steady, two dimensional Euler equations, considering working gas in thermo-chemical equilibrium, is presented. Three variations of the Total Variation Diminishing (TVD) Harten-Yee scheme are implemented. One of them is a technique based on the adaptive use of different limiter functions in each wave of the Riemann problem. With this technique, the undesired effects of the artificial viscosity on the capture of contact discontinuities are reduced, however without losing robustness in the non-linear waves resolution. Therefore, this work is an extension of this adaptive scheme including gas in thermo-chemical equilibrium. In order to verify the accuracy of the proposed scheme in the bidimensional case, results of the unsteady flows in cylindrical Riemann problems, and of the steady state solutions of hypersonic flow over a blunt body, are presented. Comparisons, considering the accuracy of the results and the convergence properties, between the three Harten-Yee schemes are carried out.
Fil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Saldía, Juan P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Elaskar, Sergio A. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Elaskar, Sergio A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Termodinámica
Materia
TVD schemes
chemical equilibrium
hypersonic flows
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Repositorio
Repositorio Digital Universitario (UNC)
Institución
Universidad Nacional de Córdoba
OAI Identificador
oai:rdu.unc.edu.ar:11086/27273
Acceder
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oai_identifier_str oai:rdu.unc.edu.ar:11086/27273
network_acronym_str RDUUNC
repository_id_str 2572
network_name_str Repositorio Digital Universitario (UNC)
spelling Two dimensional numerical simulation for compressible flow in thermo-chemical equilibriumSaldía, Juan P.Elaskar, Sergio A.Tamagno, Jose P.TVD schemeschemical equilibriumhypersonic flowsFil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.Fil: Saldía, Juan P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Elaskar, Sergio A. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.Fil: Elaskar, Sergio A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.In this paper, a finite difference scheme for the solution of the unsteady and steady, two dimensional Euler equations, considering working gas in thermo-chemical equilibrium, is presented. Three variations of the Total Variation Diminishing (TVD) Harten-Yee scheme are implemented. One of them is a technique based on the adaptive use of different limiter functions in each wave of the Riemann problem. With this technique, the undesired effects of the artificial viscosity on the capture of contact discontinuities are reduced, however without losing robustness in the non-linear waves resolution. Therefore, this work is an extension of this adaptive scheme including gas in thermo-chemical equilibrium. In order to verify the accuracy of the proposed scheme in the bidimensional case, results of the unsteady flows in cylindrical Riemann problems, and of the steady state solutions of hypersonic flow over a blunt body, are presented. Comparisons, considering the accuracy of the results and the convergence properties, between the three Harten-Yee schemes are carried out.Fil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.Fil: Saldía, Juan P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Elaskar, Sergio A. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.Fil: Elaskar, Sergio A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Termodinámica2013info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf1666-6070http://hdl.handle.net/11086/27273enginfo:eu-repo/semantics/openAccessreponame:Repositorio Digital Universitario (UNC)instname:Universidad Nacional de Córdobainstacron:UNC2025-10-23T11:17:57Zoai:rdu.unc.edu.ar:11086/27273Institucionalhttps://rdu.unc.edu.ar/Universidad públicaNo correspondehttp://rdu.unc.edu.ar/oai/snrdoca.unc@gmail.comArgentinaNo correspondeNo correspondeNo correspondeopendoar:25722025-10-23 11:17:58.209Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdobafalse
dc.title.none.fl_str_mv Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
title Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
spellingShingle Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
Saldía, Juan P.
TVD schemes
chemical equilibrium
hypersonic flows
title_short Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
title_full Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
title_fullStr Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
title_full_unstemmed Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
title_sort Two dimensional numerical simulation for compressible flow in thermo-chemical equilibrium
dc.creator.none.fl_str_mv Saldía, Juan P.
Elaskar, Sergio A.
Tamagno, Jose P.
author Saldía, Juan P.
author_facet Saldía, Juan P.
Elaskar, Sergio A.
Tamagno, Jose P.
author_role author
author2 Elaskar, Sergio A.
Tamagno, Jose P.
author2_role author
author
dc.subject.none.fl_str_mv TVD schemes
chemical equilibrium
hypersonic flows
topic TVD schemes
chemical equilibrium
hypersonic flows
dc.description.none.fl_txt_mv Fil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Saldía, Juan P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Elaskar, Sergio A. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Elaskar, Sergio A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
In this paper, a finite difference scheme for the solution of the unsteady and steady, two dimensional Euler equations, considering working gas in thermo-chemical equilibrium, is presented. Three variations of the Total Variation Diminishing (TVD) Harten-Yee scheme are implemented. One of them is a technique based on the adaptive use of different limiter functions in each wave of the Riemann problem. With this technique, the undesired effects of the artificial viscosity on the capture of contact discontinuities are reduced, however without losing robustness in the non-linear waves resolution. Therefore, this work is an extension of this adaptive scheme including gas in thermo-chemical equilibrium. In order to verify the accuracy of the proposed scheme in the bidimensional case, results of the unsteady flows in cylindrical Riemann problems, and of the steady state solutions of hypersonic flow over a blunt body, are presented. Comparisons, considering the accuracy of the results and the convergence properties, between the three Harten-Yee schemes are carried out.
Fil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Saldía, Juan P. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Elaskar, Sergio A. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
Fil: Elaskar, Sergio A. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Termodinámica
description Fil: Saldía, Juan P. Universidad Nacional de Córdoba. Departamento de Aeronáutica; Argentina.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv 1666-6070
http://hdl.handle.net/11086/27273
identifier_str_mv 1666-6070
url http://hdl.handle.net/11086/27273
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Digital Universitario (UNC)
instname:Universidad Nacional de Córdoba
instacron:UNC
reponame_str Repositorio Digital Universitario (UNC)
collection Repositorio Digital Universitario (UNC)
instname_str Universidad Nacional de Córdoba
instacron_str UNC
institution UNC
repository.name.fl_str_mv Repositorio Digital Universitario (UNC) - Universidad Nacional de Córdoba
repository.mail.fl_str_mv oca.unc@gmail.com
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score 12.982451

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