{"id":86643,"date":"2018-03-10T00:11:16","date_gmt":"2018-03-10T00:11:16","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/singular-effects-of-surface-tension-in-saffman-taylor-dynamics\/"},"modified":"2018-03-10T00:11:16","modified_gmt":"2018-03-10T00:11:16","slug":"singular-effects-of-surface-tension-in-saffman-taylor-dynamics","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/singular-effects-of-surface-tension-in-saffman-taylor-dynamics\/","title":{"rendered":"Singular effects of surface tension in saffman-taylor dynamics"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Francesc Xavier Magdaleno Escar <\/strong><\/h2>\n<p>El objetivo central de esta tesis ha sido el estudio a nivel anal\u00edtico del papel de la tensi\u00f3n superficial como una perturbaci\u00f3n singular en la din\u00e1mica del problema de saffman-taylor.  en primer lugar, se ha realizado un detallado y exhausto estudio anal\u00edtico, utilizando t\u00e9cnicas de variable compleja y de sistemas din\u00e1micas, de una familia de soluciones del problema idealizado (sin tension superficial que representan graficamente dos dedos viscosos, de diferentes anchuras y alturas, que avanzan por un canal. Siendo esta \u00faltimas tecnicas las que nos ha permitido comparar a nivel global o topol\u00f3gico, el flujo en el espacio de las fases asociando a esta una inestabilidad estructural, la cual nos ha permitido concluir la falta de contenido fisico del problema idealizado (basicamente debido a la existencia de un conjunto continuo de puntos fijos, los cuales nos indican la falta de selecci\u00f3n en el problema estudiado).  una segunda parte fue la extensi\u00f3n de la teoria de selecci\u00f3n (solvability theory) a la configuraci\u00f3n antes mencionada, intentado visualizar el efecto cuantizador de la tensi\u00f3n superficial en este conjunto continuo de puntos fijos. Se observo la existencia deun conjunto discreto infinito de soluciones con dedos diferentes que avanzaban a la misma velocidad y qe sobrevivian a la incorporacion de la tension superficial. Un resultado sorprendente que abre las puertas a una teoria de solvabilidad microsc\u00f3pica para la dinamica de digitacion viscosa.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Singular effects of surface tension in saffman-taylor dynamics<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Singular effects of surface tension in saffman-taylor dynamics <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Francesc Xavier Magdaleno Escar <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/09\/2000<\/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>Jaume Casademunt Viader<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Guinea l\u00f3pez <\/li>\n<li>francesc Sagues mestre (vocal)<\/li>\n<li>Juan Elezgaray lizarribar (vocal)<\/li>\n<li>martine Ben amar (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Francesc Xavier Magdaleno Escar El objetivo central de esta tesis ha sido el estudio a nivel anal\u00edtico [&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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