Interacción de ondas de choque planas con flujos inhomogéneos

The propagation of shock waves in inhomogeneous/turbulent flows is a fundamental problem in different fields, ranging from shock tube research, astrophysics, aerodynamics, inertial confinement fusion (ICF), and high energy density physics (HEDP), where the shock waves traveling into an inhomogeneous...

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Autor: Huete Ruiz de Lira, César
Tipo de recurso: tesis doctoral
Fecha de publicación:2012
País:España
Institución:Universidad Nacional de Educación a Distancia
Repositorio:e-spacio (DSpace). Repositorio Institucional de la UNED
Idioma:inglés
OAI Identifier:oai:dnet:e-spacio(ds_::e384786553b27cc16a568dd0e8faf74a
Acceso en línea:https://hdl.handle.net/20.500.14468/32859
Access Level:acceso abierto
Palabra clave:2204.04 Mecánica de Fluidos (Ver 2205.04)
2201.06 Ondas de Choque
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spelling Interacción de ondas de choque planas con flujos inhomogéneosInteraction of planar shock waves with non uniform flowsHuete Ruiz de Lira, César2204.04 Mecánica de Fluidos (Ver 2205.04)2201.06 Ondas de ChoqueThe propagation of shock waves in inhomogeneous/turbulent flows is a fundamental problem in different fields, ranging from shock tube research, astrophysics, aerodynamics, inertial confinement fusion (ICF), and high energy density physics (HEDP), where the shock waves traveling into an inhomogeneous medium generate additional vorticity, density, and pressure downstream fluctuations that may affect shock performance. The characteristics of the turbulent flow that ensues downstream strongly depends on the type of the flow disturbances ahead of the shock. In this work, we show for the first time, exact analytical expressions for the perturbation field that evolve downstream, both in space and time, as a result of the interaction of a shock wave with single-mode vortical/entropic/acoustic perturbations upstream. The details of the interaction with each perturbation mode are explicitly shown separately. Besides, statistical averages of the quantities of interest downstream (kinetic energy, acoustic flows, density amplification and vorticity) are easily performed for isotropic spectra in front of the shock. The comparison with existing experiments (shock/vorticity spectrum) and numerical simulations (DNS, LES for shock vorticity/entropy /acoustic isotropic spectra) is very good. All the quantities can be expressed as a function of the shock strength and the gas compressibility, and they can also be derived as closed-form exact analytical expressions. These formulas are further reduced to simpler asymptotic expressions in the limits of weak/strong shock and high compressibility.Universidad Nacional de Educación a Distancia (España). Facultad de Ciencias. Departamento de Física Fundamental. Doctorado en Física de Sistemas ComplejosCrespo del Arco, EmiliaWouchuk Schmidtd, Juan Gustavoe-Spacio UNED20262026-06-1220122012-02-1220122012-02-12doctoral thesishttp://purl.org/coar/resource_type/c_db06info:eu-repo/semantics/doctoralThesisapplication/pdfhttps://hdl.handle.net/20.500.14468/32859reponame:e-spacio (DSpace). Repositorio Institucional de la UNEDinstname:Universidad Nacional de Educación a DistanciaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.esoai:dnet:e-spacio(ds_::e384786553b27cc16a568dd0e8faf74a2026-06-15T06:41:27Z
dc.title.none.fl_str_mv Interacción de ondas de choque planas con flujos inhomogéneos
Interaction of planar shock waves with non uniform flows
title Interacción de ondas de choque planas con flujos inhomogéneos
spellingShingle Interacción de ondas de choque planas con flujos inhomogéneos
Huete Ruiz de Lira, César
2204.04 Mecánica de Fluidos (Ver 2205.04)
2201.06 Ondas de Choque
title_short Interacción de ondas de choque planas con flujos inhomogéneos
title_full Interacción de ondas de choque planas con flujos inhomogéneos
title_fullStr Interacción de ondas de choque planas con flujos inhomogéneos
title_full_unstemmed Interacción de ondas de choque planas con flujos inhomogéneos
title_sort Interacción de ondas de choque planas con flujos inhomogéneos
dc.creator.none.fl_str_mv Huete Ruiz de Lira, César
author Huete Ruiz de Lira, César
author_facet Huete Ruiz de Lira, César
author_role author
dc.contributor.none.fl_str_mv Crespo del Arco, Emilia
Wouchuk Schmidtd, Juan Gustavo
e-Spacio UNED
dc.subject.none.fl_str_mv 2204.04 Mecánica de Fluidos (Ver 2205.04)
2201.06 Ondas de Choque
topic 2204.04 Mecánica de Fluidos (Ver 2205.04)
2201.06 Ondas de Choque
description The propagation of shock waves in inhomogeneous/turbulent flows is a fundamental problem in different fields, ranging from shock tube research, astrophysics, aerodynamics, inertial confinement fusion (ICF), and high energy density physics (HEDP), where the shock waves traveling into an inhomogeneous medium generate additional vorticity, density, and pressure downstream fluctuations that may affect shock performance. The characteristics of the turbulent flow that ensues downstream strongly depends on the type of the flow disturbances ahead of the shock. In this work, we show for the first time, exact analytical expressions for the perturbation field that evolve downstream, both in space and time, as a result of the interaction of a shock wave with single-mode vortical/entropic/acoustic perturbations upstream. The details of the interaction with each perturbation mode are explicitly shown separately. Besides, statistical averages of the quantities of interest downstream (kinetic energy, acoustic flows, density amplification and vorticity) are easily performed for isotropic spectra in front of the shock. The comparison with existing experiments (shock/vorticity spectrum) and numerical simulations (DNS, LES for shock vorticity/entropy /acoustic isotropic spectra) is very good. All the quantities can be expressed as a function of the shock strength and the gas compressibility, and they can also be derived as closed-form exact analytical expressions. These formulas are further reduced to simpler asymptotic expressions in the limits of weak/strong shock and high compressibility.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-02-12
2012
2012-02-12
2026
2026-06-12
dc.type.none.fl_str_mv doctoral thesis
http://purl.org/coar/resource_type/c_db06
dc.type.openaire.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14468/32859
url https://hdl.handle.net/20.500.14468/32859
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
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional de Educación a Distancia (España). Facultad de Ciencias. Departamento de Física Fundamental. Doctorado en Física de Sistemas Complejos
publisher.none.fl_str_mv Universidad Nacional de Educación a Distancia (España). Facultad de Ciencias. Departamento de Física Fundamental. Doctorado en Física de Sistemas Complejos
dc.source.none.fl_str_mv reponame:e-spacio (DSpace). Repositorio Institucional de la UNED
instname:Universidad Nacional de Educación a Distancia
instname_str Universidad Nacional de Educación a Distancia
reponame_str e-spacio (DSpace). Repositorio Institucional de la UNED
collection e-spacio (DSpace). Repositorio Institucional de la UNED
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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