{"id":12168,"date":"2013-01-10T11:48:55","date_gmt":"2013-01-10T10:48:55","guid":{"rendered":"http:\/\/volets10.fr\/WP\/?p=12168"},"modified":"2013-01-10T11:48:55","modified_gmt":"2013-01-10T10:48:55","slug":"la-portance-dune-aile","status":"publish","type":"post","link":"https:\/\/volets10.fr\/WP\/archives\/12168\/la-portance-dune-aile\/","title":{"rendered":"LA PORTANCE D&rsquo;UNE AILE"},"content":{"rendered":"<p>La portance r\u00e9sulte de la\u00a0<b>d\u00e9flexion\u00a0vers le bas d&rsquo;un d\u00e9bit massique d&rsquo;air<\/b>\u00a0(Newton)<\/p>\n<div><img loading=\"lazy\" decoding=\"async\" alt=\"\" src=\"http:\/\/inter.action.free.fr\/images\/aerodynamique\/aero-portance\/00-PORTANCE-profil-anim-03.gif\" width=\"283\" height=\"283\" border=\"0\" \/><\/div>\n<p>L&rsquo;air, fluide dans lequel \u00e9volue les a\u00e9ronefs est un milieu qui \u00ab\u00a0c\u00e8de\u00a0\u00bb \u00e0 la pouss\u00e9e. Autrement dit, l&rsquo;air se d\u00e9robe lorsque l&rsquo;on cherche \u00e0 s&rsquo;appuyer dessus.<br \/>\nSi l&rsquo;on veut obtenir une portance dynamique (par opposition \u00e0 la portance a\u00e9rostatique d&rsquo;Archim\u00e8de des ballons et dirigeables) il faut\u00a0\u00e9jecter\u00a0en permanence un d\u00e9bit massique de fluide vers le bas (\u00e9jection d&rsquo;une certaine quantit\u00e9 de mouvement), en \u00e9change de quoi, d&rsquo;apr\u00e8s une loi de Newton, on r\u00e9cup\u00e8re une force vers le haut.<\/p>\n<p>Lire l&rsquo;article ici :\u00a0<a href=\"http:\/\/inter.action.free.fr\/\" target=\"_blank\">http:\/\/inter.action.free.fr\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La portance r\u00e9sulte de la\u00a0d\u00e9flexion\u00a0vers le bas d&rsquo;un d\u00e9bit massique d&rsquo;air\u00a0(Newton) L&rsquo;air, fluide dans lequel \u00e9volue les a\u00e9ronefs est un milieu qui \u00ab\u00a0c\u00e8de\u00a0\u00bb \u00e0 la pouss\u00e9e. Autrement dit, l&rsquo;air se d\u00e9robe lorsque l&rsquo;on cherche \u00e0 s&rsquo;appuyer dessus. Si l&rsquo;on veut obtenir une portance dynamique (par opposition \u00e0 la portance a\u00e9rostatique d&rsquo;Archim\u00e8de des ballons et dirigeables) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[335],"tags":[1601,1019,557,3025,1602,1600,2895,2896,2412,535,993],"class_list":["post-12168","post","type-post","status-publish","format-standard","hentry","category-info-technique","tag-aile","tag-aviation","tag-aviation-generale","tag-info-technique","tag-interaction","tag-la-portance","tag-nouvelles","tag-nouvelles-de-laviation-generale","tag-volets","tag-volets10","tag-volets10-fr"],"_links":{"self":[{"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/posts\/12168"}],"collection":[{"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/comments?post=12168"}],"version-history":[{"count":0,"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/posts\/12168\/revisions"}],"wp:attachment":[{"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/media?parent=12168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/categories?post=12168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/volets10.fr\/WP\/wp-json\/wp\/v2\/tags?post=12168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}