{"id":88655,"date":"2025-10-28T13:39:25","date_gmt":"2025-10-28T17:39:25","guid":{"rendered":"https:\/\/mayahtt.com\/blog\/f1-2026-dirty-air-often-talked-about-now-visualized\/"},"modified":"2025-11-17T10:57:02","modified_gmt":"2025-11-17T15:57:02","slug":"f1-2026-lair-sale-souvent-evoque-desormais-visualise","status":"publish","type":"post","link":"https:\/\/www.mayahtt.com\/fr\/blog\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\/","title":{"rendered":"F1 2026 : L\u2019air sale \u2014 souvent \u00e9voqu\u00e9, d\u00e9sormais visualis\u00e9"},"content":{"rendered":"<p>[et_pb_section fb_built=&nbsp;&raquo;1&Prime; admin_label=&nbsp;&raquo;section&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.16&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_row admin_label=&nbsp;&raquo;row&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; background_size=&nbsp;&raquo;initial&nbsp;&raquo; background_position=&nbsp;&raquo;top_left&nbsp;&raquo; background_repeat=&nbsp;&raquo;repeat&nbsp;&raquo; custom_margin=&nbsp;&raquo;0px||||false|false&nbsp;&raquo; custom_padding=&nbsp;&raquo;0px||||false|false&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;4_4&Prime; _builder_version=&nbsp;&raquo;4.16&Prime; custom_padding=&nbsp;&raquo;|||&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; custom_padding__hover=&nbsp;&raquo;|||&nbsp;&raquo;][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p>Les pilotes parlent souvent d\u2019\u00ab air sale \u00bb \u2014 le sillage perturb\u00e9 qui complique la poursuite d\u2019une autre voiture. Gr\u00e2ce \u00e0 la CFD haute-fid\u00e9lit\u00e9, nous pouvons d\u00e9passer la m\u00e9taphore et r\u00e9v\u00e9ler ce que contient r\u00e9ellement ce champ d\u2019\u00e9coulement.<\/p>\n<p>Nous pr\u00e9sentons ici une simulation DES (Detached Eddy Simulation) compl\u00e8te de notre concept F1 2026, compar\u00e9e \u00e0 une simulation RANS stationnaire de m\u00eame g\u00e9om\u00e9trie et conditions. L\u2019objectif : montrer ce que la r\u00e9solution des structures instationnaires apporte, et les enseignements que l\u2019on peut en tirer.<\/p>\n<p><span class=\"NormalTextRun SCXW93225556 BCX0\">Si vous d\u00e9couvrez cette s\u00e9rie, n\u2019h\u00e9sitez pas \u00e0 consulter notre article pr\u00e9c\u00e9dent: <a href=\"\/fr\/blog\/400-kmh-les-f1-2026-peuvent-elles-y-arriver\">400 km\/h en ligne de mire : les F1 2026 peuvent-elles y arriver ?<\/a><\/span><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;]<iframe title=\"YouTube video player\" referrerpolicy=\"strict-origin-when-cross-origin\"   src=\"https:\/\/www.youtube.com\/embed\/vFqtPvSVtJA?si=NrJIy2LiyQKnjtBA\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe>[\/et_pb_text][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<h2>Du stationnaire \u00e0 l\u2019instationnaire \u2014 que change r\u00e9ellement la DES ?<\/h2>\n<ul>\n<li><strong>RANS (stationnaire) : <\/strong>R\u00e9sout les \u00e9quations de Navier\u2013Stokes moyenn\u00e9es dans le temps avec un mod\u00e8le de turbulence, et produit un champ d\u2019\u00e9coulement moyen. Adapt\u00e9 au d\u00e9veloppement a\u00e9rodynamique quotidien et \u00e0 la comparaison de forces moyennes.<\/li>\n<li><strong>DES (instationnaire) : <\/strong>M\u00e9thode hybride RANS\u2013LES qui r\u00e9sout les grandes structures tourbillonnaires dans les zones s\u00e9par\u00e9es tout en gardant le mod\u00e8le RANS pr\u00e8s des parois. Produit des champs d\u00e9pendants du temps, permettant de d\u00e9river moyennes et variances.<\/li>\n<li style=\"list-style-type: none;\">\u00a0<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&nbsp;&raquo;1_2,1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-surface-wake.jpg&nbsp;&raquo; alt=&nbsp;&raquo;Formula 1 car surface wake&nbsp;&raquo; title_text=&nbsp;&raquo;f1-surface-wake&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-cfd-model-surface-wake.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 surface wake CFD model&nbsp;&raquo; title_text=&nbsp;&raquo;f1-cfd-model-surface-wake&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-cfd-surface-wake-top.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 cfd model showing top surface wake&nbsp;&raquo; title_text=&nbsp;&raquo;f1-cfd-surface-wake-top&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p><em><strong>L\u00e9gende :<\/strong> Plans de sillage comparant RANS et DES<\/em><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-des-surface-wake.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 car DES surface wake&nbsp;&raquo; title_text=&nbsp;&raquo;f1-des-surface-wake&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-cfd-model-des-surface-wake.jpg&nbsp;&raquo; title_text=&nbsp;&raquo;f1-cfd-model-des-surface-wake&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-cfd-des-surface-wake-top.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 CFD analysis showing DES surface wake from a top view&nbsp;&raquo; title_text=&nbsp;&raquo;f1-cfd-des-surface-wake-top&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;4_4&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<h3>Implications de simulation<\/h3>\n<p>Capturer ce niveau de d\u00e9tail a un co\u00fbt :<\/p>\n<ul>\n<li>Maillage raffin\u00e9 pour r\u00e9soudre les tourbillons d\u00e9tach\u00e9s<\/li>\n<li>Pas de temps tr\u00e8s court (CFL &lt; 1)<\/li>\n<li>Suivi r\u00e9gulier de la variance et covariance pour assurer la convergence statistique<\/li>\n<li>Bon param\u00e9trage du rapport de viscosit\u00e9 turbulente (TVR) et de la fraction d\u2019\u00e9nergie cin\u00e9tique turbulente (TKE)<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&nbsp;&raquo;1_2,1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-cfd-mesh3.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 CFD analysis&nbsp;&raquo; title_text=&nbsp;&raquo;f1-cfd-mesh3&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-bp-cfd-mesh.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 BP CFD mesh&nbsp;&raquo; title_text=&nbsp;&raquo;f1-bp-cfd-mesh&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p style=\"text-align: center;\"><strong>L\u00e9gende :<\/strong> Comparaison de maillage \u2014 RANS vs. DES<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-cfd-des-mesh3.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 CFD DES mesh&nbsp;&raquo; title_text=&nbsp;&raquo;f1-cfd-des-mesh3&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/f1-bp-cfd-des-mesh.jpg&nbsp;&raquo; alt=&nbsp;&raquo;F1 BP CFD DES mesh&nbsp;&raquo; title_text=&nbsp;&raquo;f1-bp-cfd-des-mesh&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;4_4&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<h2>R\u00e9sultats : forces et instationnarit\u00e9<\/h2>\n<p>La DES capture les oscillations temporelles de la tra\u00een\u00e9e (CDA) et de la portance (CLA) que la RANS filtre par d\u00e9finition.<\/p>\n<p>Le graphique ci-dessous montre leur \u00e9volution sur 0,15 s de temps simul\u00e9.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&nbsp;&raquo;1_2,1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/force-vs-unsteadiness-1.png&nbsp;&raquo; title_text=&nbsp;&raquo;force-vs-unsteadiness-1&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/force-vs-unsteadiness-2.png&nbsp;&raquo; title_text=&nbsp;&raquo;force-vs-unsteadiness-2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;4_4&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p style=\"text-align: center;\"><em><strong>L\u00e9gende :<\/strong> Signal des forces \u2014 tra\u00een\u00e9e et portance totale sur 0,15 s, moyennes indiqu\u00e9es<\/em><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&nbsp;&raquo;1_2,1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/cda-cla-variation-1.png&nbsp;&raquo; alt=&nbsp;&raquo;CLA &#038; CDA variation for chassis for floor&nbsp;&raquo; title_text=&nbsp;&raquo;cda-cla-variation-1&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/cda-cla-variation-chassis.png&nbsp;&raquo; alt=&nbsp;&raquo;CLA &#038; CDA variation for chassis graph&nbsp;&raquo; title_text=&nbsp;&raquo;cda-cla-variation-chassis&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;4_4&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p style=\"text-align: center;\"><em><strong>L\u00e9gende :<\/strong> Variation du CDA et CLA pour le plancher et le ch\u00e2ssis<\/em><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p>La variance peut ensuite \u00eatre d\u00e9compos\u00e9e par bandes de fr\u00e9quences, r\u00e9v\u00e9lant quelles plages contribuent le plus aux variations des coefficients.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&nbsp;&raquo;1_2,1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/band-variance-cda-chassis-monitor.png&nbsp;&raquo; alt=&nbsp;&raquo;Band variance CDA chassis monitor&nbsp;&raquo; title_text=&nbsp;&raquo;band-variance-cda-chassis-monitor&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/band-variance-cda-floor-monitor.png&nbsp;&raquo; alt=&nbsp;&raquo;Band variance CDA floor monitor&nbsp;&raquo; title_text=&nbsp;&raquo;band-variance-cda-floor-monitor&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][et_pb_column type=&nbsp;&raquo;1_2&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/band-variance-cla-chassis-monitor.png&nbsp;&raquo; alt=&nbsp;&raquo;Band variance CLA chassis monitor&nbsp;&raquo; title_text=&nbsp;&raquo;band-variance-cla-chassis-monitor&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][et_pb_image src=&nbsp;&raquo;https:\/\/mayahtt.com\/wp-content\/uploads\/2025\/10\/band-variance-cla-floor-monitor.png&nbsp;&raquo; alt=&nbsp;&raquo;Band variance CLA floor monitor&nbsp;&raquo; title_text=&nbsp;&raquo;band-variance-cla-floor-monitor&nbsp;&raquo; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_column type=&nbsp;&raquo;4_4&Prime; _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p style=\"text-align: center;\"><em><strong>L\u00e9gende :<\/strong> D\u00e9composition fr\u00e9quentielle de la variance du CDA et du CLA<\/em><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<p>Les pics peuvent \u00eatre associ\u00e9s \u00e0 des structures p\u00e9riodiques : par exemple, le d\u00e9collement du flux autour du cockpit et du halo est li\u00e9 aux pics haute fr\u00e9quence du ch\u00e2ssis. Le plancher concentre sa variance de tra\u00een\u00e9e en dessous de 75 Hz, avec d\u2019autres contributions pour la portance \u00e0 des fr\u00e9quences sup\u00e9rieures.<\/p>\n<h2>Donner du sens \u00e0 l\u2019instationnaire<\/h2>\n<p>La DES offre bien plus qu\u2019une belle visualisation :<\/p>\n<ul>\n<li><strong>Corr\u00e9lation avec la r\u00e9alit\u00e9<\/strong> : relier les oscillations CFD aux instabilit\u00e9s mesur\u00e9es sur piste.<\/li>\n<li><strong>Analyse de sensibilit\u00e9<\/strong> : observer comment une modification g\u00e9om\u00e9trique influence la moyenne ou la stabilit\u00e9 des charges.<\/li>\n<\/ul>\n<p><strong>D\u00e9pendance aux conditions de roulage<\/strong> : r\u00e9p\u00e9ter la DES pour diff\u00e9rentes hauteurs de caisse ou attitude permet d\u2019identifier o\u00f9 les instabilit\u00e9s se renforcent.<\/p>\n<h2>Conclusion \u2014 Vue du dessus<\/h2>\n<p>Vue de face, de l\u2019arri\u00e8re ou du dessus, la DES r\u00e9v\u00e8le la complexit\u00e9 tridimensionnelle du sillage d\u2019une F1 2026.<br \/>Elle transforme un concept souvent cit\u00e9 \u2014 <em>l\u2019air sale<\/em> \u2014 en ph\u00e9nom\u00e8ne mesurable et observable, ouvrant la voie \u00e0 une meilleure compr\u00e9hension de la performance et de la stabilit\u00e9.<\/p>\n<p><em><strong>L\u00e9gende :<\/strong> Champ d\u2019h\u00e9licit\u00e9 sur 0,15 s pour la simulation DES (vue de dessus)<\/em><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo;]<\/p>\n<p><iframe title=\"YouTube video player\" referrerpolicy=\"strict-origin-when-cross-origin\"   src=\"https:\/\/www.youtube.com\/embed\/0vOfjaY2aFY?si=guIcKvzp2ubOxCzu\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&nbsp;&raquo;4.27.4&Prime; _module_preset=&nbsp;&raquo;default&nbsp;&raquo; hover_enabled=&nbsp;&raquo;0&Prime; global_colors_info=&nbsp;&raquo;{}&nbsp;&raquo; sticky_enabled=&nbsp;&raquo;0&Prime;]<\/p>\n<h2>L\u2019\u00e9quipe Simulation Maya HTT<\/h2>\n<p>La DES n\u2019est pas une simple option de calcul \u2014 c\u2019est une approche hybride complexe reliant RANS et LES pour capturer le comportement r\u00e9el, d\u00e9pendant du temps, d\u2019un \u00e9coulement a\u00e9rodynamique.<\/p>\n<p>Chez Maya HTT, nous transformons cette complexit\u00e9 en clart\u00e9. Gr\u00e2ce \u00e0 nos workflows CFD standardis\u00e9s et \u00e0 nos outils de mod\u00e9lisation param\u00e9trique, nous aidons les \u00e9quipes \u00e0 extraire des enseignements exploitables, que ce soit pour des voitures de course, des avions ou d\u2019autres syst\u00e8mes complexes.<\/p>\n<p><strong>Envie d\u2019explorer vos propres d\u00e9fis de conception ?<br \/><\/strong><br \/><a href=\"\/fr\/about-maya-htt\/contact\">Contactez notre \u00e9quipe<\/a> pour d\u00e9couvrir comment la simulation peut guider votre prochaine innovation.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les pilotes parlent souvent d\u2019\u00ab air sale \u00bb \u2014 le sillage perturb\u00e9 qui complique la poursuite d\u2019une autre voiture. Gr\u00e2ce \u00e0 la CFD haute-fid\u00e9lit\u00e9, nous pouvons d\u00e9passer la m\u00e9taphore et r\u00e9v\u00e9ler ce que contient r\u00e9ellement ce champ d\u2019\u00e9coulement. Nous pr\u00e9sentons ici une simulation DES (Detached Eddy Simulation) compl\u00e8te de notre concept F1 2026, compar\u00e9e \u00e0 une simulation RANS stationnaire de m\u00eame g\u00e9om\u00e9trie et conditions. L\u2019objectif : montrer ce que la r\u00e9solution des structures instationnaires apporte, et les enseignements que l\u2019on peut en tirer. Si vous d\u00e9couvrez cette s\u00e9rie, n\u2019h\u00e9sitez pas \u00e0 consulter notre article pr\u00e9c\u00e9dent: 400 km\/h en ligne de mire : les F1 2026 peuvent-elles y arriver ?Du stationnaire \u00e0 l\u2019instationnaire \u2014 que change r\u00e9ellement la DES ? RANS (stationnaire) : R\u00e9sout les \u00e9quations de Navier\u2013Stokes moyenn\u00e9es dans le temps avec un mod\u00e8le de turbulence, et produit un champ d\u2019\u00e9coulement moyen. Adapt\u00e9 au d\u00e9veloppement a\u00e9rodynamique quotidien et \u00e0 la comparaison de forces moyennes. DES (instationnaire) : M\u00e9thode hybride RANS\u2013LES qui r\u00e9sout les grandes structures tourbillonnaires dans les zones s\u00e9par\u00e9es tout en gardant le mod\u00e8le RANS pr\u00e8s des parois. Produit des champs d\u00e9pendants du temps, permettant de d\u00e9river moyennes et variances. \u00a0 L\u00e9gende : Plans de sillage comparant RANS et [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":88436,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[10],"tags":[],"class_list":["post-88655","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>F1 2026 : L\u2019air sale \u2014 souvent \u00e9voqu\u00e9, d\u00e9sormais visualis\u00e9 - Maya HTT<\/title>\n<meta name=\"description\" content=\"Nous pr\u00e9sentons ici une simulation DES (Detached Eddy Simulation) compl\u00e8te de notre concept F1 2026, compar\u00e9e \u00e0 une simulation RANS stationnaire de m\u00eame g\u00e9om\u00e9trie et conditions.\" \/>\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.mayahtt.com\/fr\/blog\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"F1 2026 : L\u2019air sale \u2014 souvent \u00e9voqu\u00e9, d\u00e9sormais visualis\u00e9 - Maya HTT\" \/>\n<meta property=\"og:description\" content=\"Nous pr\u00e9sentons ici une simulation DES (Detached Eddy Simulation) compl\u00e8te de notre concept F1 2026, compar\u00e9e \u00e0 une simulation RANS stationnaire de m\u00eame g\u00e9om\u00e9trie et conditions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mayahtt.com\/fr\/blog\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\/\" \/>\n<meta property=\"og:site_name\" content=\"Maya HTT\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-28T17:39:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-17T15:57:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mayahtt.com\/wp-content\/uploads\/2025\/10\/wake-planes-des.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"845\" \/>\n\t<meta property=\"og:image:height\" content=\"257\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mark-James M\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark-James M\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/blog\\\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/blog\\\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\\\/\"},\"author\":{\"name\":\"Mark-James M\",\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/#\\\/schema\\\/person\\\/dd14c9be5c93cb0f73a52a7ae23be736\"},\"headline\":\"F1 2026 : L\u2019air sale \u2014 souvent \u00e9voqu\u00e9, d\u00e9sormais visualis\u00e9\",\"datePublished\":\"2025-10-28T17:39:25+00:00\",\"dateModified\":\"2025-11-17T15:57:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/blog\\\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\\\/\"},\"wordCount\":1986,\"publisher\":{\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/blog\\\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.mayahtt.com\\\/wp-content\\\/uploads\\\/2025\\\/10\\\/wake-planes-des.jpg\",\"articleSection\":[\"Non classifi\u00e9(e)\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/blog\\\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\\\/\",\"url\":\"https:\\\/\\\/www.mayahtt.com\\\/fr\\\/blog\\\/f1-2026-lair-sale-souvent-evoque-desormais-visualise\\\/\",\"name\":\"F1 2026 : L\u2019air sale \u2014 souvent \u00e9voqu\u00e9, d\u00e9sormais visualis\u00e9 - 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