{"id":66816,"date":"2008-09-09T00:00:00","date_gmt":"2008-09-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/medida-experimental-de-la-concentracion-de-area-interfacial-en-flujos-bifasicos-finalmente-dispersos-y-en-transicion\/"},"modified":"2008-09-09T00:00:00","modified_gmt":"2008-09-09T00:00:00","slug":"medida-experimental-de-la-concentracion-de-area-interfacial-en-flujos-bifasicos-finalmente-dispersos-y-en-transicion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/tecnologia-nuclear\/medida-experimental-de-la-concentracion-de-area-interfacial-en-flujos-bifasicos-finalmente-dispersos-y-en-transicion\/","title":{"rendered":"Medida experimental de la concentraci\u00f3n de \u00e1rea interfacial en flujos bif\u00e1sicos finalmente dispersos y en transici\u00f3n."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Santos Mendez Diaz <\/strong><\/h2>\n<p>En a\u00f1os recientes se han realizado esfuerzos para incrementar la compresi\u00f3n de los fen\u00f3menos asociados al flujo bif\u00e1sico l\u00edquido &#8211; gas, para lo cual se han establecido modelos matem\u00e1ticos que intentan reflejar el comprotamiento del flujo, como es el caso del modelo de los dos flu\u00eddos. Una causa de la complejidad que representa el modelado es la transferencia de masa, momento y energ\u00eda entre fases debida a la interacci\u00f3n entre fases. Actualmente los modelos de c\u00e1lculo empleados en cfd y en c\u00f3digos termohidra\u00falicos conf\u00edan en correlaciones experimentales altamente dependientes del r\u00e9gimen de flujo para determinar el \u00e1rea interfacial, sin embargo este procedimiento no refleja la naturaleza f\u00edsica y se presentan irregularidades en la zona de la interfase debidas a fen\u00f3menos de transporte no descritos por estos modelos. En este sentido se ha propuesto recientemente una teor\u00eda de transporte de area interfacial que parece ser una soluci\u00f3n viable al problema de la obtenci\u00f3n de ecuaciones constitutivas del area interfacial y con ella, el cierre del modelo. Esta ecuaci\u00f3n consta de t\u00e9rminos convectivos y temporales que pueden ser resueltos anal\u00edticamente, por otro lado contiene t\u00e9rminos fuente y sumidero que representan la creaci\u00f3n y destrucci\u00f3n de burbujas que a\u00fan no han sido completamente modelados; para la comprension de dichos t\u00e9rminos es requerida informaci\u00f3n experimental, misma que este trabajo intenta generar mediante la obtenci\u00f3n de una base de datos experimentales que aporten informaci\u00f3n \u00fatil para el modelado de sistemas bif\u00e1sicos.  para la obtenci\u00f3n de la base de datos fue necesario dise\u00f1ar, construir e instrumentar una instalaci\u00f3n experimental que permitiera la formaci\u00f3n de flujos bif\u00e1sicos agua-aire con velocidades superficiales de fase l\u00edquida  y gas similares a las existentes en los actuales reactores nucleares. El sistema de formaci\u00f3n de mezcla bif\u00e1sica que se dise\u00f1\u00f3 y construy\u00f3 permite la obtenci\u00f3n de varios reg\u00edmenes de flujo, en su funcionamiento emplea medio<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Medida experimental de la concentraci\u00f3n de \u00e1rea interfacial en flujos bif\u00e1sicos finalmente dispersos y en transici\u00f3n.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Medida experimental de la concentraci\u00f3n de \u00e1rea interfacial en flujos bif\u00e1sicos finalmente dispersos y en transici\u00f3n. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Santos Mendez Diaz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/09\/2008<\/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>cobo Gonz\u00e1lez Mu\u00f1oz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: gumersindo Verdu martin <\/li>\n<li>joaqu\u00edn Navarro esbr\u00ed (vocal)<\/li>\n<li>Jos\u00e9 enrique Juli\u00e1 bol\u00edvar (vocal)<\/li>\n<li>lLuis Batet miracle (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Santos Mendez Diaz En a\u00f1os recientes se han realizado esfuerzos para incrementar la compresi\u00f3n de los fen\u00f3menos [&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 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