{"id":30883,"date":"2018-03-09T09:24:41","date_gmt":"2018-03-09T09:24:41","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/modelos-numericos-acoplados-a-un-codigo-fluidodinamico-para-el-analisis-del-riesgo-de-combustion-de-hidrogeno-en-contenciones\/"},"modified":"2018-03-09T09:24:41","modified_gmt":"2018-03-09T09:24:41","slug":"modelos-numericos-acoplados-a-un-codigo-fluidodinamico-para-el-analisis-del-riesgo-de-combustion-de-hidrogeno-en-contenciones","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/politecnica-de-madrid\/modelos-numericos-acoplados-a-un-codigo-fluidodinamico-para-el-analisis-del-riesgo-de-combustion-de-hidrogeno-en-contenciones\/","title":{"rendered":"Modelos numericos acoplados a un codigo fluidodinamico para el analisis del riesgo de combustion de hidrogeno en contenciones"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Juan  Manuel Martin Valdepe\u00f1as Yague <\/strong><\/h2>\n<p>Esta tesis doctoral est\u00e1 dedicada al an\u00e1lisis del riesgo de combusti\u00f3n de hidr\u00f3geno en la contenci\u00f3n de centrales nucleares durante un accidente severo. Los fen\u00f3menos involucrados en este problema abarcan un rango muy amplio de escalas espaciales y temporales. Hay dos familias de c\u00f3digos de c\u00e1lculo que pueden tratar este problema: c\u00f3digos de par\u00e1metros promediados, menos detallados y precisos, pero muy r\u00e1pidos en el c\u00e1lculo y c\u00f3digos de fluidodin\u00e1mica computacional, m\u00e1s precisos y detallados, pero m\u00e1s lentos y limitados en fenomenolog\u00eda. La aplicaci\u00f3n de una metodolog\u00eda conjunta entre los dos tipos de c\u00f3digos permitir\u00eda obtener resultados suficientemente precisos en tiempos de c\u00e1lculo razonables. El c\u00f3digo cfx-4 es un c\u00f3digo comercial, de fluididin\u00e1mica computacional, que no ha sido desarrollado espec\u00edficamente para estudios de seguridad de combusti\u00f3n de hidr\u00f3geno en contenci\u00f3n. Por lo tanto, su utilizaci\u00f3n en este tipo de problemas necesita una intensa labor de validaci\u00f3n y de acoplamiento de modelos, que simulen todos los fen\u00f3menos relevantes. Estas tareas constituyen la principal contribuci\u00f3n de la tesis doctoral.  la revisi\u00f3n de los fen\u00f3menos termohidr\u00e1ulicos de contenci\u00f3n ha permitido identificar aquellos que son importantes en los estudios de riesgo de combusti\u00f3n de hidr\u00f3geno: formaci\u00f3n de chorros y plumas, convecci\u00f3n natural y condensaci\u00f3n. se ha validado el c\u00f3digo frente a experimentos de efectos separados que reproducen estos fen\u00f3menos o correlaciones ampliamente aceptadas; los resultados han demostrado la capacidad del c\u00f3digo para reproducirlos.  el fen\u00f3meno de la condensaci\u00f3n de vapor en pel\u00edcula es uno de los m\u00e1s importantes en estos estudios de seguridad, ya que la cantidad de vapor en la atm\u00f3sfera marcar\u00e1 la sensibilidad de la mezcla a la combusti\u00f3n. En el c\u00f3digo cfx-4, que no presenta modelos espec\u00edficos para la condensaci\u00f3n, se ha implementado un modelo que simula la p<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Modelos numericos acoplados a un codigo fluidodinamico para el analisis del riesgo de combustion de hidrogeno en contenciones<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Modelos numericos acoplados a un codigo fluidodinamico para el analisis del riesgo de combustion de hidrogeno en contenciones <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Juan  Manuel Martin Valdepe\u00f1as Yague <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 18\/06\/2004<\/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>Francisco Martin Fuertes Hernandez Sonseca<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: agustin Alonso santos <\/li>\n<li>Antonio Lecuona neuman (vocal)<\/li>\n<li>Antonio Crespo Martinez (vocal)<\/li>\n<li> Herranz puebla Luis enrique (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Juan Manuel Martin Valdepe\u00f1as Yague Esta tesis doctoral est\u00e1 dedicada al an\u00e1lisis del riesgo de combusti\u00f3n de [&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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