A numerical strategy to compute optical parameters in turbulent flow: application to telescopes

We present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier–Stokes equations, which are approximated using a finite element method. From the time evolution of the flow paramete...

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Detalhes bibliográficos
Autores: Codina, Ramon|||0000-0002-7412-778X, Baiges Aznar, Joan|||0000-0002-3940-5887, Pérez Sánchez, Daniel, Collados, Manuel
Formato: artículo
Fecha de publicación:2010
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/7722
Acesso em linha:https://hdl.handle.net/2117/7722
https://dx.doi.org/10.1016/j.compfluid.2009.07.005
Access Level:acceso abierto
Palavra-chave:Navier-Stokes equations
Equacions de Navier-Stokes
Àrees temàtiques de la UPC::Física
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spelling A numerical strategy to compute optical parameters in turbulent flow: application to telescopesCodina, Ramon|||0000-0002-7412-778XBaiges Aznar, Joan|||0000-0002-3940-5887Pérez Sánchez, DanielCollados, ManuelNavier-Stokes equationsEquacions de Navier-StokesÀrees temàtiques de la UPC::FísicaWe present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier–Stokes equations, which are approximated using a finite element method. From the time evolution of the flow parameters we describe how to compute statistics of the flow variables and, from them, the parameters that determine the quality of the visibility. The methodology is applied to estimate the optical quality around telescope enclosures.20102010-01-0120102010-06-17journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/7722https://dx.doi.org/10.1016/j.compfluid.2009.07.005reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/77222026-05-27T15:37:01Z
dc.title.none.fl_str_mv A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
title A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
spellingShingle A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
Codina, Ramon|||0000-0002-7412-778X
Navier-Stokes equations
Equacions de Navier-Stokes
Àrees temàtiques de la UPC::Física
title_short A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
title_full A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
title_fullStr A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
title_full_unstemmed A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
title_sort A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
dc.creator.none.fl_str_mv Codina, Ramon|||0000-0002-7412-778X
Baiges Aznar, Joan|||0000-0002-3940-5887
Pérez Sánchez, Daniel
Collados, Manuel
author Codina, Ramon|||0000-0002-7412-778X
author_facet Codina, Ramon|||0000-0002-7412-778X
Baiges Aznar, Joan|||0000-0002-3940-5887
Pérez Sánchez, Daniel
Collados, Manuel
author_role author
author2 Baiges Aznar, Joan|||0000-0002-3940-5887
Pérez Sánchez, Daniel
Collados, Manuel
author2_role author
author
author
dc.subject.none.fl_str_mv Navier-Stokes equations
Equacions de Navier-Stokes
Àrees temàtiques de la UPC::Física
topic Navier-Stokes equations
Equacions de Navier-Stokes
Àrees temàtiques de la UPC::Física
description We present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier–Stokes equations, which are approximated using a finite element method. From the time evolution of the flow parameters we describe how to compute statistics of the flow variables and, from them, the parameters that determine the quality of the visibility. The methodology is applied to estimate the optical quality around telescope enclosures.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-01-01
2010
2010-06-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/7722
https://dx.doi.org/10.1016/j.compfluid.2009.07.005
url https://hdl.handle.net/2117/7722
https://dx.doi.org/10.1016/j.compfluid.2009.07.005
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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