{"version":"1.0","provider_name":"GRETh","provider_url":"https:\/\/greth.fr\/en","title":"Direct Numerical Simulation of Nucleate Boiling in Microgravity","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"NhkLUU5gaE\"><a href=\"https:\/\/greth.fr\/en\/direct-numerical-simulation-of-nucleate-boiling-in-microgravity\/\">Direct Numerical Simulation of Nucleate Boiling in Microgravity<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/greth.fr\/en\/direct-numerical-simulation-of-nucleate-boiling-in-microgravity\/embed\/#?secret=NhkLUU5gaE\" width=\"600\" height=\"338\" title=\"&#8220;Direct Numerical Simulation of Nucleate Boiling in Microgravity&#8221; &#8212; GRETh\" data-secret=\"NhkLUU5gaE\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/greth.fr\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>","thumbnail_url":"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg","thumbnail_width":435,"thumbnail_height":276,"description":"R\u00e9sum\u00e9 : La pr\u00e9diction des transferts de chaleur en \u00e9bullition nucl\u00e9\u00e9e est un probl\u00e8me ouvert. La CFD permet des simulations a \u00e9chelle industrielle, mais n\u00e9cessite des mod\u00e9lisations de ces transferts. Aujourd\u2019hui, les mod\u00e8les les plus \u00e9labor\u00e9s sont bas\u00e9s sur une partition du flux de chaleur entre chaleur latente due \u00e0 la vaporisation des bulles et chaleur sensible due au transfert direct de la chaleur vers la phase liquide. Ils n\u00e9cessitent cependant une bonne pr\u00e9diction des taux de croissance des bulles et de leur diam\u00e8tre de d\u00e9tachement, qui peut \u00eatre obtenue par simulation DNS. C\u2019est ce que l\u2019on propose de faire dans cette th\u00e8se. En DNS, les co\u00fbts de calculs pour des simulations \u00e0"}