{"id":4974,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/nucleation-and-cavitation-in-liquid-helium\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"nucleation-and-cavitation-in-liquid-helium","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/nucleation-and-cavitation-in-liquid-helium\/","title":{"rendered":"\u00abnucleation and cavitation in liquid helium\u00bb."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Montserrat Guilleumas Morell <\/strong><\/h2>\n<p>Las transicions de fase no siempre ocurren bajo condiciones de equilibrio. Un fluido puede ser conducido a un estado metastable. A pesar de ser internamente estable, existe otra configuracion con un potencial termodinamico menor, por tanto energeticamente mas favorable y a la cual el sistema tendira. Esta transicion esta bloqueada por una barrera termodinamica que puede ser superada con resultado de la formacion y crecimiento de peque\u00f1os nucleos de la nueva fase estable en la fase metastable. Este proceso se llama nucleacion (formacion de gotas en un vapor sub-enfriado) o cavitacion (burbujas en un liquido sobre-calentado).  en esta tesis hemos estudiado los fenomenos de cavitacion y nucleacion en helio dentro del marco de la teoria del funcional de la densidad. Primero hemos estudiado la activacion termica en 3he y 4he puros y en las mezclas 3he-4he, estimando la presion a partir de la cual tiene lugar la transicion de fase. Para los sistemas puros hemos estudiado tambien la activacion cuantica a muy bajas temperaturas, estimando la temperatura de transicion entre ambos regimenes.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>\u00abnucleation and cavitation in liquid helium\u00bb.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 \u00abnucleation and cavitation in liquid helium\u00bb. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Montserrat Guilleumas Morell <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/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>Manuel Barranco G\u00f3mez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Montserrat Casas Ametller <\/li>\n<li>Jordi Boronat Medico (vocal)<\/li>\n<li>Jes\u00fas Navarro Faus (vocal)<\/li>\n<li>Francesca Garcias Gomila (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Montserrat Guilleumas Morell Las transicions de fase no siempre ocurren bajo condiciones de equilibrio. Un fluido puede [&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":[951,7477,199,200,20048,2793],"tags":[20051,11408,20050,12035,9601,20049],"class_list":["post-4974","post","type-post","status-publish","format-standard","hentry","category-barcelona","category-cambio-de-fase","category-fisica","category-fisica-de-fluidos","category-fluidos-cuanticos","category-termodinamica","tag-francesca-garcias-gomila","tag-jesus-navarro-faus","tag-jordi-boronat-medico","tag-manuel-barranco-gomez","tag-montserrat-casas-ametller","tag-montserrat-guilleumas-morell"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/4974","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=4974"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/4974\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=4974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=4974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=4974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}