{"id":44024,"date":"2019-10-14T12:52:34","date_gmt":"2019-10-14T11:52:34","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-que-lequation-de-fourier-biot-definition\/"},"modified":"2020-02-17T17:01:38","modified_gmt":"2020-02-17T16:01:38","slug":"quest-ce-que-lequation-de-fourier-biot-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/","title":{"rendered":"Qu&#8217;est-ce que l&#8217;\u00e9quation de Fourier-Biot &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">L&#8217;\u00e9quation de Fourier-Biot fournit l&#8217;outil de base pour l&#8217;analyse de la conduction thermique.\u00a0De sa solution, nous pouvons obtenir le champ de temp\u00e9rature en fonction du temps.\u00a0G\u00e9nie thermique<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>\u00c9quation de Fourier-Biot &#8211; \u00e9quation de conduction thermique<\/h2>\n<p>L&#8217;\u00a0<strong>\u00e9quation de conduction thermique,<\/strong>\u00a0\u00e9galement appel\u00e9e\u00a0\u00a0<strong>\u00e9quation de\u00a0<\/strong><strong>Fourier-Biot,<\/strong>\u00a0est une \u00e9quation diff\u00e9rentielle partielle qui d\u00e9crit la r\u00e9partition de la\u00a0<strong>chaleur<\/strong>\u00a0(ou du\u00a0<strong>champ de temp\u00e9rature<\/strong>\u00a0) dans un corps donn\u00e9 dans le temps.\u00a0Une connaissance d\u00e9taill\u00e9e du champ de temp\u00e9rature est tr\u00e8s importante dans la conduction thermique \u00e0 travers les mat\u00e9riaux.\u00a0Une fois cette distribution de temp\u00e9rature connue, le\u00a0<strong>flux thermique de conduction<\/strong>\u00a0en un point quelconque du mat\u00e9riau ou \u00e0 sa surface peut \u00eatre calcul\u00e9 \u00e0 partir de\u00a0<a title=\"Loi de Fourier sur la conduction thermique\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-loi-de-fourier-sur-la-conduction-thermique-definition\/\">la loi<\/a>\u00a0de\u00a0<a title=\"Fourier\u2019s Law of Thermal Conduction\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-la-loi-de-fourier-sur-la-conduction-thermique-definition\/\">Fourier<\/a>\u00a0.<\/p>\n<p>L&#8217;\u00e9quation de la chaleur est\u00a0<strong>d\u00e9riv\u00e9e<\/strong>\u00a0de\u00a0<strong>la loi<\/strong>\u00a0de\u00a0<strong>Fourier<\/strong>\u00a0et de la\u00a0<a title=\"Loi de conservation de l'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/\"><strong>conservation de l&#8217;\u00e9nergie<\/strong><\/a>\u00a0.\u00a0La loi de Fourier stipule que le temps\u00a0<strong>de transfert de chaleur \u00e0<\/strong>\u00a0travers un mat\u00e9riau est\u00a0<strong>proportionnel au\u00a0<\/strong><strong>gradient<\/strong>\u00a0n\u00e9gatif\u00a0<strong>de la temp\u00e9rature<\/strong>\u00a0et \u00e0 la surface, perpendiculairement \u00e0 ce gradient, \u00e0 travers lequel la chaleur s&#8217;\u00e9coule.<\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Fourier%E2%80%99s-law-of-Thermal-Conduction-equation.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-20040 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Fourier%E2%80%99s-law-of-Thermal-Conduction-equation.png\" alt=\"Loi de Fourier sur la conduction thermique\" width=\"335\" height=\"152\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Fourier\u2019s-law-of-Thermal-Conduction-equation.png\" \/><\/a><\/p>\n<p>Un changement d&#8217;\u00e9nergie interne par unit\u00e9 de volume dans le mat\u00e9riau, \u0394Q, est proportionnel au changement de temp\u00e9rature, \u0394u.\u00a0C&#8217;est:<\/p>\n<p><strong>Q = \u03c1.c\u00a0<\/strong><strong><sub>p<\/sub><\/strong><strong>\u00a0.\u2206T<\/strong><\/p>\n<p><strong>Forme g\u00e9n\u00e9rale<\/strong><\/p>\n<p>En utilisant ces deux \u00e9quations, nous pouvons d\u00e9river l&#8217;\u00e9quation g\u00e9n\u00e9rale de la conduction thermique:<\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-general-form.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-20166 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-general-form.png\" alt=\"Equation de conduction thermique - Equation de Fourier-Biot\" width=\"543\" height=\"233\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-general-form.png\" \/><\/a><\/p>\n<p>Cette \u00e9quation est \u00e9galement connue sous le nom d&#8217;\u00a0<strong>\u00e9quation de Fourier-Biot<\/strong>\u00a0et constitue l&#8217;outil de base pour l&#8217;analyse de la conduction thermique.\u00a0De sa solution, nous pouvons obtenir le champ de temp\u00e9rature en fonction du temps.<\/p>\n<p>En mots, l\u2019\u00a0<strong>\u00e9quation de la conduction thermique<\/strong>\u00a0\u00e9nonce que:<\/p>\n<p><em>\u00c0 n&#8217;importe quel moment du support, le taux net de transfert d&#8217;\u00e9nergie par conduction en une unit\u00e9 de volume, plus le taux de production volum\u00e9trique d&#8217;\u00e9nergie thermique, doit \u00eatre \u00e9gal au taux de variation de l&#8217;\u00e9nergie thermique stock\u00e9e dans le volume.<\/em><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><\/div>\n<\/div>\n<\/div>\n<div tabindex=\"0\" role=\"button\">\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Cet article est bas\u00e9 sur la traduction automatique de l&#8217;article original en anglais. Pour plus d&#8217;informations, voir l&#8217;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&#8217;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;\u00e9quation de Fourier-Biot fournit l&#8217;outil de base pour l&#8217;analyse de la conduction thermique.\u00a0De sa solution, nous pouvons obtenir le champ de temp\u00e9rature en fonction du temps.\u00a0G\u00e9nie thermique \u00c9quation de Fourier-Biot &#8211; \u00e9quation de conduction thermique L&#8217;\u00a0\u00e9quation de conduction thermique,\u00a0\u00e9galement appel\u00e9e\u00a0\u00a0\u00e9quation de\u00a0Fourier-Biot,\u00a0est une \u00e9quation diff\u00e9rentielle partielle qui d\u00e9crit la r\u00e9partition de la\u00a0chaleur\u00a0(ou du\u00a0champ de temp\u00e9rature\u00a0) dans &#8230; <a title=\"Qu&#8217;est-ce que l&#8217;\u00e9quation de Fourier-Biot &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce que l&#8217;\u00e9quation de Fourier-Biot &#8211; D\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que l&#039;\u00e9quation de Fourier-Biot - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"L&#039;\u00e9quation de Fourier-Biot fournit l&#039;outil de base pour l&#039;analyse de la conduction thermique. De sa solution, nous pouvons obtenir le champ de temp\u00e9rature en fonction du temps. G\u00e9nie thermique\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu&#039;est-ce que l&#039;\u00e9quation de Fourier-Biot - D\u00e9finition\" \/>\n<meta property=\"og:description\" content=\"L&#039;\u00e9quation de Fourier-Biot fournit l&#039;outil de base pour l&#039;analyse de la conduction thermique. De sa solution, nous pouvons obtenir le champ de temp\u00e9rature en fonction du temps. G\u00e9nie thermique\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2019-10-14T11:52:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-02-17T16:01:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Fourier%E2%80%99s-law-of-Thermal-Conduction-equation.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture est.\">\n\t<meta name=\"twitter:data2\" content=\"2 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/#primaryimage\",\"inLanguage\":\"fr-FR\",\"url\":\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Fourier%E2%80%99s-law-of-Thermal-Conduction-equation.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/\",\"name\":\"Qu'est-ce que l'\\u00e9quation de Fourier-Biot - D\\u00e9finition\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/#primaryimage\"},\"datePublished\":\"2019-10-14T11:52:34+00:00\",\"dateModified\":\"2020-02-17T16:01:38+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"L'\\u00e9quation de Fourier-Biot fournit l'outil de base pour l'analyse de la conduction thermique. De sa solution, nous pouvons obtenir le champ de temp\\u00e9rature en fonction du temps. G\\u00e9nie thermique\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lequation-de-fourier-biot-definition\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"fr-FR\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/posts\/44024"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/comments?post=44024"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/posts\/44024\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/media?parent=44024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/categories?post=44024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/fr\/wp-json\/wp\/v2\/tags?post=44024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}