An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations

Detalhes bibliográficos
Autor(a) principal: Azevedo,João Luiz F.
Data de Publicação: 2009
Outros Autores: Korzenowski,Heidi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Aerospace Technology and Management (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462009000200135
Resumo: Abstract: A comparison of five different spatial discretization schemes is performed considering a typical high speed flow application. Flowfields are simulated using the 2-D Euler equations, discretized in a cell-centered finite volume procedure on unstructured triangular meshes. The algorithms studied include a central difference-type scheme, and 1st- and 2nd-order van Leer and Liou flux-vector splitting schemes. These methods are implemented in an efficient, edge-based, unstructured grid procedure which allows for adaptive mesh refinement based on flow property gradients. Details of the unstructured grid implementation of the methods are presented together with a discussion of the data structure and of the adaptive refinement strategy. The application of interest is the cold gas flow through a typical hypersonic inlet. Results for different entrance Mach numbers and mesh topologies are discussed in order to assess the comparative performance of the various spatial discretization schemes.
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spelling An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculationsHypersonic flowCold gas flowFinite volume methodUnstructured gridsSpatial discretization schemesAbstract: A comparison of five different spatial discretization schemes is performed considering a typical high speed flow application. Flowfields are simulated using the 2-D Euler equations, discretized in a cell-centered finite volume procedure on unstructured triangular meshes. The algorithms studied include a central difference-type scheme, and 1st- and 2nd-order van Leer and Liou flux-vector splitting schemes. These methods are implemented in an efficient, edge-based, unstructured grid procedure which allows for adaptive mesh refinement based on flow property gradients. Details of the unstructured grid implementation of the methods are presented together with a discussion of the data structure and of the adaptive refinement strategy. The application of interest is the cold gas flow through a typical hypersonic inlet. Results for different entrance Mach numbers and mesh topologies are discussed in order to assess the comparative performance of the various spatial discretization schemes.Departamento de Ciência e Tecnologia Aeroespacial2009-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462009000200135Journal of Aerospace Technology and Management v.1 n.2 2009reponame:Journal of Aerospace Technology and Management (Online)instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)instacron:DCTA10.5028/jatm.2009.0102135152info:eu-repo/semantics/openAccessAzevedo,João Luiz F.Korzenowski,Heidieng2017-05-29T00:00:00Zoai:scielo:S2175-91462009000200135Revistahttp://www.jatm.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||secretary@jatm.com.br2175-91461984-9648opendoar:2017-05-29T00:00Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)false
dc.title.none.fl_str_mv An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
title An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
spellingShingle An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
Azevedo,João Luiz F.
Hypersonic flow
Cold gas flow
Finite volume method
Unstructured grids
Spatial discretization schemes
title_short An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
title_full An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
title_fullStr An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
title_full_unstemmed An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
title_sort An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
author Azevedo,João Luiz F.
author_facet Azevedo,João Luiz F.
Korzenowski,Heidi
author_role author
author2 Korzenowski,Heidi
author2_role author
dc.contributor.author.fl_str_mv Azevedo,João Luiz F.
Korzenowski,Heidi
dc.subject.por.fl_str_mv Hypersonic flow
Cold gas flow
Finite volume method
Unstructured grids
Spatial discretization schemes
topic Hypersonic flow
Cold gas flow
Finite volume method
Unstructured grids
Spatial discretization schemes
description Abstract: A comparison of five different spatial discretization schemes is performed considering a typical high speed flow application. Flowfields are simulated using the 2-D Euler equations, discretized in a cell-centered finite volume procedure on unstructured triangular meshes. The algorithms studied include a central difference-type scheme, and 1st- and 2nd-order van Leer and Liou flux-vector splitting schemes. These methods are implemented in an efficient, edge-based, unstructured grid procedure which allows for adaptive mesh refinement based on flow property gradients. Details of the unstructured grid implementation of the methods are presented together with a discussion of the data structure and of the adaptive refinement strategy. The application of interest is the cold gas flow through a typical hypersonic inlet. Results for different entrance Mach numbers and mesh topologies are discussed in order to assess the comparative performance of the various spatial discretization schemes.
publishDate 2009
dc.date.none.fl_str_mv 2009-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462009000200135
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462009000200135
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5028/jatm.2009.0102135152
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Ciência e Tecnologia Aeroespacial
publisher.none.fl_str_mv Departamento de Ciência e Tecnologia Aeroespacial
dc.source.none.fl_str_mv Journal of Aerospace Technology and Management v.1 n.2 2009
reponame:Journal of Aerospace Technology and Management (Online)
instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
instacron:DCTA
instname_str Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
instacron_str DCTA
institution DCTA
reponame_str Journal of Aerospace Technology and Management (Online)
collection Journal of Aerospace Technology and Management (Online)
repository.name.fl_str_mv Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
repository.mail.fl_str_mv ||secretary@jatm.com.br
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