{"id":138356,"date":"2026-01-12T17:34:44","date_gmt":"2026-01-12T17:34:44","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/desenvolupament-de-models-k-e-simulacio-numerica-de-fluxos-turbulents-confinats\/"},"modified":"2026-01-12T17:34:44","modified_gmt":"2026-01-12T17:34:44","slug":"desenvolupament-de-models-k-e-simulacio-numerica-de-fluxos-turbulents-confinats","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/desenvolupament-de-models-k-e-simulacio-numerica-de-fluxos-turbulents-confinats\/","title":{"rendered":"Desenvolupament de models k-e: simulacio numerica de fluxos turbulents confinats."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Juan Herrero <\/strong><\/h2>\n<p>La amplia mayoria de flujos de interes practico son flujos turbulentos. Dada su enorme complejidad, la simulacion numerica de flujos turbulentos requiere la modelizacion matematica de la turbulencia. Los modelos mas frecuentemente utilizados en aplicaciones ingenieriles son los modelos k-e. La utilizacion de estos modelos en flujos confinados requiere su adaptacion a las zonas de bajos numeros de reynolds turbulentos, donde los efectos viscosos son importantes, como sucede en las cercanias de una pared. Esto se logra mediante la inclusion de funciones amortiguadoras en algunos terminos de las ecuaciones de transporte.  en este trabajo, se han desarrollado modelos de turbulencia k-e validos para la prediccion del flujo y de la transferencia de calor y materia, incluso en condiciones de baja difusividad, en flujos confinados. Asimismo, una de las formulaciones desarrolladas, que incluye la definicion de una nueva escala de longitud, resulta especialmente adecuada para la simulacion de flujos en geometrias complejas, ya que no requiere la evaluacion de parametros geometricos. La eficacia de estos modelos, inicialmente desarrollados para flujos turbulentos simples, se ha contrastado con la simulacion numerica de flujos turbulentos bidimensionales en geometrias complejas, incluyendo el caso de un reactor industrial de polimerizacion. Los resultados de estas simulaciones, comparados con los datos experimentales disponibles, son satisfactorios, si bien en algun caso se manifiestan las limitaciones propias de los modelos k-e, como son la incapacidad de caracterizar con exactitud flujos turbulentos con asimetria o con gradientes adversos de presion.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Desenvolupament de models k-e: simulacio numerica de fluxos turbulents confinats.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Desenvolupament de models k-e: simulacio numerica de fluxos turbulents confinats. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Juan Herrero <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1992<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Francesc Giralt Prat<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Eugeni Valencia Leonardo <\/li>\n<li>Manel Sanroma Lucia (vocal)<\/li>\n<li>Joaquim Casal F\u00ed\u00a0brega (vocal)<\/li>\n<li>Jordi Gavalda Casado (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Juan Herrero La amplia mayoria de flujos de interes practico son flujos turbulentos. Dada su enorme complejidad, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[951,332,199,305,202,9022,334],"tags":[70994,30329,9222,180415,252888,90898],"class_list":["post-138356","post","type-post","status-publish","format-standard","hentry","category-barcelona","category-ciencias-tecnologicas","category-fisica","category-ingenieria-y-tecnologia-quimicas","category-mecanica","category-mecanica-de-liquidos","category-procesos-quimicos","tag-eugeni-valencia-leonardo","tag-francesc-giralt-prat","tag-joaquim-casal-fi-brega","tag-jordi-gavalda-casado","tag-juan-herrero","tag-manel-sanroma-lucia"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/138356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=138356"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/138356\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=138356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=138356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=138356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}