{"id":4493,"date":"2024-05-10T15:12:35","date_gmt":"2024-05-10T13:12:35","guid":{"rendered":"https:\/\/www.virdex.it\/2024\/05\/10\/henri-coanda-the-effect-and-the-hoods\/"},"modified":"2024-05-10T15:12:35","modified_gmt":"2024-05-10T13:12:35","slug":"henri-coanda-the-effect-and-the-hoods","status":"publish","type":"post","link":"https:\/\/www.virdex.it\/en\/2024\/05\/10\/henri-coanda-the-effect-and-the-hoods\/","title":{"rendered":"Henri Coand\u0103: the Effect and the Hoods"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text text_larger=&#8221;no&#8221;][\/vc_column_text][vc_column_text text_larger=&#8221;no&#8221;]Do you know <a href=\"https:\/\/en.wikipedia.org\/wiki\/Henri_Coand%C4%83\"><strong>Henri Coand\u0103<\/strong><\/a>?<br \/>\nDo you know that he has a strong connection with aspiration?<\/p>\n<p>A character from a novel: born in 1886 in Bucharest, into an upper-middle-class family; he was introduced to military studies from a very young age.<\/p>\n<p>He immediately stood out for his familiarity with physics and aerodynamics, so much so that he managed (at just 19 years old) to design an aircraft missile for the Army.<\/p>\n<p>He had the opportunity to travel around Europe (Belgium and Germany) to perfect his knowledge.<br \/>\nUntil he decided that the military uniform was too &#8220;tight&#8221; for him.<\/p>\n<p>Then he took a period that today we would define as a <em>sabbatical<\/em>, and, driving a car (bear in mind it&#8217;s 1909&#8230;) he decided to undertake a long journey that took him first to Isfah\u0101n and Tehran, in the then kingdom of Persia.<br \/>\nAnd then up to the peaks of Tibet.<\/p>\n<p>Now, if you&#8217;re wondering how many unforeseen events a person in 1909 might have had to undertake such a journey with a car of that era, well, that makes two of us.<\/p>\n<p>But that&#8217;s not the point of this post!<\/p>\n<p>However&#8230; Henri returned from his very long journey and settled in Paris, where he the &#8220;<em>Institut Sup\u00e9rieur de l&#8217;A\u00e9ronautique et de l&#8217;Espace<\/em>&#8220;.<\/p>\n<p>Now, you may be wondering: what do car trips and aeroplanes have to do with extractor hoods?<\/p>\n<p>We&#8217;re getting there&#8230;<\/p>\n<p>It was in Belle-Epoque Paris that Henri published a project on a new type of aircraft engine, which exploited an effect that was soon named after him: the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Coand%C4%83_effect\"><strong>Coand\u0103 effect<\/strong><\/a>.<\/p>\n<p>Using the discoverer&#8217;s own words:<\/p>\n<blockquote><p>&#8220;When a jet of fluid is passed over an adjacent flat or curved surface, it bends to follow the surface, entraining large amounts of air as it does so&#8221;.<\/p><\/blockquote>\n<p>Ergo, when the <em>thermal plume<\/em>, not disturbed by any air currents, rises from the cooking area, a surface parallel to it (such as a steel bulkhead) helps to convey the convective motion of these fumes, which they will direct towards the filters.<br \/>\nAll with significant savings in terms of energy!<\/p>\n<p>Well, we have already talked previously about the importance of <a href=\"https:\/\/www.virdex.it\/2024\/03\/21\/aspirazioni-di-aspirazione\/\">bulkheads<\/a>, both on the sides and in the back of the cooking line.<\/p>\n<p>However, we did not thank Mr. Coand\u0103 for explaining to us why they are important!<\/p>\n<p>Here we go: thanks, Henry!<br \/>\nAnd thank you <a href=\"http:\/\/www.aluminox.it\"><strong>Aluminox<\/strong><\/a> for providing Premium-Quality restaurant hoods![\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text text_larger=&#8221;no&#8221;][\/vc_column_text][vc_column_text text_larger=&#8221;no&#8221;]Do you know Henri Coand\u0103? Do you know that he has a strong connection with aspiration? A character<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-4493","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/posts\/4493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/comments?post=4493"}],"version-history":[{"count":0,"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/posts\/4493\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/media?parent=4493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/categories?post=4493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.virdex.it\/en\/wp-json\/wp\/v2\/tags?post=4493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}