{"id":27650,"date":"2026-05-19T10:05:19","date_gmt":"2026-05-19T08:05:19","guid":{"rendered":"https:\/\/greth.fr\/?p=27650"},"modified":"2026-05-19T10:53:04","modified_gmt":"2026-05-19T08:53:04","slug":"modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques","status":"publish","type":"post","link":"https:\/\/greth.fr\/en\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/","title":{"rendered":"Multiscale modeling of heat exchangers for aircraft propulsion systems"},"content":{"rendered":"<strong><span style=\"text-decoration: underline;\">Summary:<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\">Improving the efficiency of heat exchangers is one of the key technological challenges to curb aircraft greenhouse gas emissions. While recent advances in geometric optimization and additive manufacturing have led to ever more complex heat exchanger designs, they have also made it exponentially difficult to predict their performances. The goal of this thesis is to develop and assess multiscale heat exchanger models based on upscaling methods of transfers in porous media. Macroscopic models offer a good trade-off between accuracy and computational cost, providing relevant transport features are accurately treated in the upscaling procedure. This work focuses on the coupling of inertial flow and non-equilibrium heat transfer in porous media. The Volume Averaging Method (VAM) is employed to derive macroscopic transport equations and determine their effective properties. Predictions of the macroscopic models are assessed against Direct Numerical Simulations (DNS) of heat exchanger models from the engineering literature. First, the upscaling of incompressible and laminar inertial flow without heat transfer is studied. The Forchheimer equation describes macroscopic momentum transport, accounting for inertial effects at the pore-scale level through a non-linear correction tensor to permeability. The VAM involves solving a non-linear problem for the velocity field deviations, commonly tackled by decoupling the inertial convective velocity from the velocity deviations. Here, an alternative approach is proposed using regular perturbation expansion, leading to a series of linear closure problems. The Forchheimer correction tensor values from both methods are compared for various Reynolds numbers and flow orientations. The proposed linearized closure approach is shown to be self-consistent and independent of Reynolds number and flow orientations. However, it is limited to Reynolds numbers below one and requires solving higher-dimensional closure problems. Then, macroscopic simulations are performed, highlighting the importance of varying pressure gradient orientations on inertial flows and revealing the necessity to account for extra-diagonal terms in the Forchheimer tensor. Next, the coupling of inertial flow and heat transfer in isothermal porous media is considered. Macroscopic fluid inertial heat transfer models developed with the VAM are compared to the Periodically Developed Flow (PDF) model. Numerical comparisons are conducted first on a reference unit cell and then on macroscopic test cases against DNS. Results reveal discrepancies between VAM and other models at high P\u00e9clet numbers. Revisited formulations of the VAM with a different averaged temperature definition and limited length-scale assumptions are proposed to improve accuracy. Additional results show excellent agreement between the revisited VAM models, the PDF model, and DNS for high P\u00e9clet number flows. Finally, fluid\/solid heat transfer in porous media where a secondary fluid phase maintains a constant temperature is considered. VAM and PDF models are revisited theoretically to account for non-equilibrium fluid\/solid heat transfer. Numerical comparisons are performed on a plate-fin heat exchanger 3D unit cell. In the case of an ideally conductive solid phase, numerical results align with previous findings, even for complex geometries. For a solid phase with finite conductivity, the generalized PDF model shows excellent agreement with DNS, while VAM models accurately compute the average temperature in the solid phase. Overall, this work highlights the strengths and limitations of upscaling methods for heat transfer and inertial flow. Methodological developments to the VAM were proposed to improve its predictions for out-of-equilibrium heat transfers, demonstrating its potential as a general framework for modeling complex aircraft heat exchangers.<\/p>\n<table border=\"1\" width=\"100%\">\n<tbody>\n<tr>\n<td><strong>Author<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Yanis BENDALI<\/td>\n<\/tr>\n<tr>\n<td><strong>Date of presentation<\/strong><\/td>\n<\/tr>\n<tr>\n<td>2025, june 16th<\/td>\n<\/tr>\n<tr>\n<td><strong>Keywords<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Inertial flow and heat transfer, Heat exchangers, Aircraft propulsion, Porous media upscaling, Volume averaging method, CFD numerical simulations<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div class=\"eds-animate edsanimate-sis-hidden\" data-eds-entry-animation=\"bounceIn\" data-eds-entry-delay=\"0\" data-eds-entry-duration=\"1\" data-eds-entry-timing=\"linear\" data-eds-exit-animation=\"\" data-eds-exit-delay=\"\" data-eds-exit-duration=\"\" data-eds-exit-timing=\"\" data-eds-repeat-count=\"1\" data-eds-keep=\"yes\" data-eds-animate-on=\"load\" data-eds-scroll-offset=\"\">\n\t\t<div class=\"box info\">\n\t\t\t<div class=\"box-inner-block\">\n\t\t\t\t<span class=\"fa tie-shortcode-boxicon\"><\/span>\n<p style=\"text-align: justify;\"><strong>&#x2666; The full version is only available for subscribers <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #3db2ea; color: #fff;\">\"ESSENTIEL\"<\/span><\/a> or <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #c6002c; color: #fff;\">\"PREMIUM\"<\/span><\/a> of GRETh!<\/strong><\/p>\n<p>&#x2666; If you are already a member \/ subscriber, you must identify yourself by <a href=\"\/wp-login.php\"><strong>clicking here<\/strong><\/a>.<br \/>\n&#x2666; If you are not a member, you can consult the offer proposed by GRETh by <a href=\"\/en\/offre-du-greth\/\"><strong>clicking here<\/strong><\/a> as well as the conditions of membership by <a href=\"\/en\/conditions-adhesion\/\"><strong>clicking here<\/strong><\/a>.\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>R\u00e9sum\u00e9 : L&#8217;am\u00e9lioration de l&#8217;efficacit\u00e9 des \u00e9changeurs thermiques est un des principaux d\u00e9fis \u00e0 relever pour r\u00e9duire les \u00e9missions de gaz \u00e0 effet de serre des avions. Si les progr\u00e8s en termes d&#8217;optimisation et de fabrication additive permettent de concevoir des \u00e9changeurs toujours plus complexes, ils rendent \u00e9galement la pr\u00e9diction de leurs performances d&#8217;autant plus difficile. L&#8217;objectif de cette th\u00e8se est de d\u00e9velopper et \u00e9valuer des mod\u00e8les multi-\u00e9chelles d&#8217;\u00e9changeurs \u00e0 l&#8217;aide de m\u00e9thodes de remont\u00e9e d&#8217;\u00e9chelle des transferts en milieu poreux. Leurs mod\u00e8les macroscopiques offrent un bon compromis entre pr\u00e9cision et co\u00fbt de calcul, lorsque les propri\u00e9t\u00e9s de transport sont d\u00e9termin\u00e9es avec pr\u00e9cision.<\/p>","protected":false},"author":1,"featured_media":963,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21],"tags":[6971,6967,6968,6970,6969,6966],"class_list":["post-27650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-documents","category-memoires-theses","tag-echangeurs-thermiques","tag-ecoulement-inertiel-et-transfert-thermique","tag-methode-de-prise-de-moyenne-volumique","tag-propulsion-aeronautique","tag-remontee-dechelle-de-milieux-poreux","tag-simulations-numeriques-cfd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mod\u00e9lisation multi-\u00e9chelle d&#039;\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques - GRETh<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/greth.fr\/en\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mod\u00e9lisation multi-\u00e9chelle d&#039;\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques\" \/>\n<meta property=\"og:description\" content=\"R\u00e9sum\u00e9 : L&#039;am\u00e9lioration de l&#039;efficacit\u00e9 des \u00e9changeurs thermiques est un des principaux d\u00e9fis \u00e0 relever pour r\u00e9duire les \u00e9missions de gaz \u00e0 effet de serre des avions. Si les progr\u00e8s en termes d&#039;optimisation et de fabrication additive permettent de concevoir des \u00e9changeurs toujours plus complexes, ils rendent \u00e9galement la pr\u00e9diction de leurs performances d&#039;autant plus difficile. L&#039;objectif de cette th\u00e8se est de d\u00e9velopper et \u00e9valuer des mod\u00e8les multi-\u00e9chelles d&#039;\u00e9changeurs \u00e0 l&#039;aide de m\u00e9thodes de remont\u00e9e d&#039;\u00e9chelle des transferts en milieu poreux. Leurs mod\u00e8les macroscopiques offrent un bon compromis entre pr\u00e9cision et co\u00fbt de calcul, lorsque les propri\u00e9t\u00e9s de transport sont d\u00e9termin\u00e9es avec pr\u00e9cision.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/greth.fr\/en\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/\" \/>\n<meta property=\"og:site_name\" content=\"GRETh\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/grethfr\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/grethfr\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-19T08:05:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-19T08:53:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"435\" \/>\n\t<meta property=\"og:image:height\" content=\"276\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"GRETh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@grethfr\" \/>\n<meta name=\"twitter:site\" content=\"@grethfr\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"GRETh\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/\"},\"author\":{\"name\":\"GRETh\",\"@id\":\"https:\\\/\\\/greth.fr\\\/#\\\/schema\\\/person\\\/6e173032c4ce46c14339ff999b721f00\"},\"headline\":\"Mod\u00e9lisation multi-\u00e9chelle d&#8217;\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques\",\"datePublished\":\"2026-05-19T08:05:19+00:00\",\"dateModified\":\"2026-05-19T08:53:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/\"},\"wordCount\":1658,\"publisher\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/theses-7.jpg\",\"keywords\":[\"\u00c9changeurs thermiques\",\"\u00c9coulement inertiel et transfert thermique\",\"M\u00e9thode de prise de moyenne volumique\",\"Propulsion a\u00e9ronautique\",\"Remont\u00e9e d'\u00e9chelle de milieux poreux\",\"Simulations num\u00e9riques CFD\"],\"articleSection\":[\"Documents\",\"M\u00e9moires de th\u00e8ses\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/\",\"url\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/\",\"name\":\"Mod\u00e9lisation multi-\u00e9chelle d'\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques - GRETh\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/theses-7.jpg\",\"datePublished\":\"2026-05-19T08:05:19+00:00\",\"dateModified\":\"2026-05-19T08:53:04+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#primaryimage\",\"url\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/theses-7.jpg\",\"contentUrl\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2015\\\/08\\\/theses-7.jpg\",\"width\":435,\"height\":276},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/greth.fr\\\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/greth.fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Mod\u00e9lisation multi-\u00e9chelle d&#8217;\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/greth.fr\\\/#website\",\"url\":\"https:\\\/\\\/greth.fr\\\/\",\"name\":\"Groupement pour la Recherche sur les \u00c9changeurs Thermiques\",\"description\":\"Une structure qui f\u00e9d\u00e8re les industriels autour des \u00e9changeurs de chaleur et des syst\u00e8mes thermiques\",\"publisher\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/#organization\"},\"alternateName\":\"GRETh\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/greth.fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/greth.fr\\\/#organization\",\"name\":\"Groupement pour la Recherche sur les Echangeurs Thermiques\",\"alternateName\":\"GRETh\",\"url\":\"https:\\\/\\\/greth.fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/greth.fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2019\\\/04\\\/maintenance.png\",\"contentUrl\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2019\\\/04\\\/maintenance.png\",\"width\":380,\"height\":460,\"caption\":\"Groupement pour la Recherche sur les Echangeurs Thermiques\"},\"image\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/grethfr\\\/\",\"https:\\\/\\\/x.com\\\/grethfr\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/greth\",\"https:\\\/\\\/youtube.com\\\/c\\\/grethfrance\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/greth.fr\\\/#\\\/schema\\\/person\\\/6e173032c4ce46c14339ff999b721f00\",\"name\":\"GRETh\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/avatar-greth-96x96.png\",\"url\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/avatar-greth-96x96.png\",\"contentUrl\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/avatar-greth-96x96.png\",\"caption\":\"GRETh\"},\"description\":\"Le GRETh, f\u00e9d\u00e8re un collectif d'industriels dont l'activit\u00e9 est la fabrication d\u2019\u00e9changeurs et d\u2019\u00e9quipements thermiques, les \u00e9tudes d\u2019ing\u00e9nieries d\u2019installations thermiques pour l\u2019industrie et le b\u00e2timent ainsi que l\u2019exploitation de sites de production et de conversion d\u2019\u00e9nergie.\",\"sameAs\":[\"http:\\\/\\\/www.greth.fr\\\/\",\"https:\\\/\\\/www.facebook.com\\\/grethfr\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/greth\",\"https:\\\/\\\/x.com\\\/grethfr\",\"https:\\\/\\\/www.youtube.com\\\/c\\\/grethfrance\"],\"url\":\"https:\\\/\\\/greth.fr\\\/en\\\/author\\\/greggus\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Mod\u00e9lisation multi-\u00e9chelle d'\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques - GRETh","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/greth.fr\/en\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/","og_locale":"en_US","og_type":"article","og_title":"Mod\u00e9lisation multi-\u00e9chelle d'\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques","og_description":"R\u00e9sum\u00e9 : L'am\u00e9lioration de l'efficacit\u00e9 des \u00e9changeurs thermiques est un des principaux d\u00e9fis \u00e0 relever pour r\u00e9duire les \u00e9missions de gaz \u00e0 effet de serre des avions. Si les progr\u00e8s en termes d'optimisation et de fabrication additive permettent de concevoir des \u00e9changeurs toujours plus complexes, ils rendent \u00e9galement la pr\u00e9diction de leurs performances d'autant plus difficile. L'objectif de cette th\u00e8se est de d\u00e9velopper et \u00e9valuer des mod\u00e8les multi-\u00e9chelles d'\u00e9changeurs \u00e0 l'aide de m\u00e9thodes de remont\u00e9e d'\u00e9chelle des transferts en milieu poreux. Leurs mod\u00e8les macroscopiques offrent un bon compromis entre pr\u00e9cision et co\u00fbt de calcul, lorsque les propri\u00e9t\u00e9s de transport sont d\u00e9termin\u00e9es avec pr\u00e9cision.","og_url":"https:\/\/greth.fr\/en\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/","og_site_name":"GRETh","article_publisher":"https:\/\/www.facebook.com\/grethfr\/","article_author":"https:\/\/www.facebook.com\/grethfr\/","article_published_time":"2026-05-19T08:05:19+00:00","article_modified_time":"2026-05-19T08:53:04+00:00","og_image":[{"width":435,"height":276,"url":"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg","type":"image\/jpeg"}],"author":"GRETh","twitter_card":"summary_large_image","twitter_creator":"@grethfr","twitter_site":"@grethfr","twitter_misc":{"Written by":"GRETh","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#article","isPartOf":{"@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/"},"author":{"name":"GRETh","@id":"https:\/\/greth.fr\/#\/schema\/person\/6e173032c4ce46c14339ff999b721f00"},"headline":"Mod\u00e9lisation multi-\u00e9chelle d&#8217;\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques","datePublished":"2026-05-19T08:05:19+00:00","dateModified":"2026-05-19T08:53:04+00:00","mainEntityOfPage":{"@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/"},"wordCount":1658,"publisher":{"@id":"https:\/\/greth.fr\/#organization"},"image":{"@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#primaryimage"},"thumbnailUrl":"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg","keywords":["\u00c9changeurs thermiques","\u00c9coulement inertiel et transfert thermique","M\u00e9thode de prise de moyenne volumique","Propulsion a\u00e9ronautique","Remont\u00e9e d'\u00e9chelle de milieux poreux","Simulations num\u00e9riques CFD"],"articleSection":["Documents","M\u00e9moires de th\u00e8ses"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/","url":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/","name":"Mod\u00e9lisation multi-\u00e9chelle d'\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques - GRETh","isPartOf":{"@id":"https:\/\/greth.fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#primaryimage"},"image":{"@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#primaryimage"},"thumbnailUrl":"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg","datePublished":"2026-05-19T08:05:19+00:00","dateModified":"2026-05-19T08:53:04+00:00","breadcrumb":{"@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#primaryimage","url":"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg","contentUrl":"https:\/\/greth.fr\/wp-content\/uploads\/2015\/08\/theses-7.jpg","width":435,"height":276},{"@type":"BreadcrumbList","@id":"https:\/\/greth.fr\/modelisation-multi-echelle-dechangeurs-thermiques-de-systemes-propulsifs-aeronautiques\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/greth.fr\/"},{"@type":"ListItem","position":2,"name":"Mod\u00e9lisation multi-\u00e9chelle d&#8217;\u00e9changeurs thermiques de syst\u00e8mes propulsifs a\u00e9ronautiques"}]},{"@type":"WebSite","@id":"https:\/\/greth.fr\/#website","url":"https:\/\/greth.fr\/","name":"Groupement pour la Recherche sur les \u00c9changeurs Thermiques","description":"A structure that brings together manufacturers around heat exchangers and thermal systems","publisher":{"@id":"https:\/\/greth.fr\/#organization"},"alternateName":"GRETh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/greth.fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/greth.fr\/#organization","name":"Groupement pour la Recherche sur les Echangeurs Thermiques","alternateName":"GRETh","url":"https:\/\/greth.fr\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/greth.fr\/#\/schema\/logo\/image\/","url":"https:\/\/greth.fr\/wp-content\/uploads\/2019\/04\/maintenance.png","contentUrl":"https:\/\/greth.fr\/wp-content\/uploads\/2019\/04\/maintenance.png","width":380,"height":460,"caption":"Groupement pour la Recherche sur les Echangeurs Thermiques"},"image":{"@id":"https:\/\/greth.fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/grethfr\/","https:\/\/x.com\/grethfr","https:\/\/www.linkedin.com\/company\/greth","https:\/\/youtube.com\/c\/grethfrance"]},{"@type":"Person","@id":"https:\/\/greth.fr\/#\/schema\/person\/6e173032c4ce46c14339ff999b721f00","name":"GRETh","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/greth.fr\/wp-content\/uploads\/2023\/01\/avatar-greth-96x96.png","url":"https:\/\/greth.fr\/wp-content\/uploads\/2023\/01\/avatar-greth-96x96.png","contentUrl":"https:\/\/greth.fr\/wp-content\/uploads\/2023\/01\/avatar-greth-96x96.png","caption":"GRETh"},"description":"Le GRETh, f\u00e9d\u00e8re un collectif d'industriels dont l'activit\u00e9 est la fabrication d\u2019\u00e9changeurs et d\u2019\u00e9quipements thermiques, les \u00e9tudes d\u2019ing\u00e9nieries d\u2019installations thermiques pour l\u2019industrie et le b\u00e2timent ainsi que l\u2019exploitation de sites de production et de conversion d\u2019\u00e9nergie.","sameAs":["http:\/\/www.greth.fr\/","https:\/\/www.facebook.com\/grethfr\/","https:\/\/www.linkedin.com\/company\/greth","https:\/\/x.com\/grethfr","https:\/\/www.youtube.com\/c\/grethfrance"],"url":"https:\/\/greth.fr\/en\/author\/greggus\/"}]}},"_links":{"self":[{"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/posts\/27650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/comments?post=27650"}],"version-history":[{"count":0,"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/posts\/27650\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/media\/963"}],"wp:attachment":[{"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/media?parent=27650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/categories?post=27650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/greth.fr\/en\/wp-json\/wp\/v2\/tags?post=27650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}