{"id":6874,"date":"2017-11-08T12:26:32","date_gmt":"2017-11-08T10:26:32","guid":{"rendered":"https:\/\/inginerie.aero\/?p=6874"},"modified":"2017-11-11T10:39:25","modified_gmt":"2017-11-11T08:39:25","slug":"henri-marie-coanda-2","status":"publish","type":"post","link":"https:\/\/inginerie.aero\/index.php\/ro\/2017\/11\/08\/henri-marie-coanda-2\/","title":{"rendered":"Henri Marie Coand\u0103"},"content":{"rendered":"<p>[et_pb_section admin_label=&#8221;Section&#8221; fullwidth=&#8221;off&#8221; specialty=&#8221;on&#8221;][et_pb_column type=&#8221;3_4&#8243; specialty_columns=&#8221;3&#8243;][et_pb_row_inner admin_label=&#8221;Row&#8221;][et_pb_column_inner type=&#8221;4_4&#8243; saved_specialty_column_type=&#8221;3_4&#8243;][et_pb_text admin_label=&#8221;Text&#8221; background_layout=&#8221;light&#8221; text_orientation=&#8221;justified&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221;]<\/p>\n<p>&nbsp;<\/p>\n<p>Henri Marie Coand\u0103 (7 Iunie 1886 \u2013 25 Noiembrie 1972) a fost un academician si inginer roman, pionier al aviatiei si inventator al unui avion cu reactie, fara elice, numit conventional Coanda-1910 si reprezentand un subiect foarte controversat\u00a0\u00een anul 1950. De asemenea, el a construit o aerodina lenticulara si a descoperit principiul care ii poarta numele.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/storage0.dms.go4it.ro\/media\/2\/84\/2031\/7099030\/5\/aerodina-1961-1965.jpg\" alt=\"-aerodina lenticulara-\" \/><\/p>\n<p>Henri Coand\u0103 a fost mai \u00eent\u00e2i elev al \u0218colii Petrache Poenaru din Bucure\u0219ti, apoi al Liceului Sf. Sava 1896 unde a urmat primele 3 clase, dup\u0103 care, la 13 ani, a fost trimis de tat\u0103l s\u0103u, care voia s\u0103-l \u00eendrume spre cariera militar\u0103, la Liceul Militar din <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Ia%C8%99i\">Ia\u0219i<\/a> 1899. Termin\u0103 liceul \u00een 1903 primind gradul de sergent major \u0219i \u00ee\u0219i continu\u0103 studiile la \u0218coala de ofi\u021beri de artilerie, geniu \u0219i marin\u0103 din Bucure\u0219ti. In 1905 Coand\u0103 construie\u0219te un avion-rachet\u0103 pentru armata rom\u00e2n\u0103. \u00centre 1907-1908 a urmat de asemenea cursuri universitare \u00een Belgia, la Li\u00e8ge, \u0219i la Institutul tehnic Montefiore. \u00cen 1908 se \u00eentoarce \u00een \u021bar\u0103 \u0219i e \u00eencadrat ofi\u021ber activ \u00een Regimentul 2 de artilerie. Datorit\u0103 firii sale \u0219i spiritului inventiv care nu se \u00eemp\u0103cau cu disciplina militar\u0103, el a cerut \u0219i ob\u021binut aprobarea de a p\u0103r\u0103si armata, dup\u0103 care, profit\u00e2nd de libertatea rec\u00e2\u0219tigat\u0103, a \u00eentreprins o lung\u0103 c\u0103l\u0103torie cu automobilul pe ruta Isfahan &#8211; Teheran &#8211; Tibet. La \u00eentoarcere pleac\u0103 \u00een Fran\u021ba \u0219i se \u00eenscrie la <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Institut_sup%C3%A9rieur_de_l%27a%C3%A9ronautique_et_de_l%27espace\">\u0218coala superioar\u0103 de aeronautic\u0103 \u0219i construc\u021bii<\/a>, nou \u00eenfiin\u021bat\u0103 la Paris 1909, al c\u0103rei absolvent devine \u00een anul urm\u0103tor 1910, ca \u0219ef al primei promo\u021bii de ingineri aeronautici.<\/p>\n<p>Cu sprijinul inginerului <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Gustave_Eiffel\">Gustave Eiffel<\/a> \u0219i savantului Paul Painlev\u00e9, care l-au ajutat s\u0103 ob\u021bin\u0103 aprob\u0103rile necesare, Henri Coand\u0103 a efectuat experimentele aerodinamice prealabile \u0219i a construit \u00een atelierul de carosaj al lui Joachim Caproni primul avion cu propulsie reactiv\u0103, <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Coand%C4%83-1910\">Coand\u0103-1910<\/a>, pe care l-a prezentat la al doilea Salon interna\u021bional aeronautic de la Paris 1910. Un alt experiment a fost construirea unui dispozitiv pentru m\u0103sur\u0103tori de portan\u021b\u0103 \u0219i rezisten\u021b\u0103 la deplasarea \u00een aer a diferitelor tipuri de suprafe\u021be portante (profile de arip\u0103) cu posibilitatea \u00eenregistr\u0103rii valorilor pe diagrame pentru posibilitatea compara\u021biei \u0219i stabilirii profilului ideal. Dispozitivul era montat pe un vagon \u00een fa\u021ba unei locomotive, iar experimentele se desf\u0103\u0219urau \u00een mi\u0219care, la o vitez\u0103 de 90 km\/h, pe linia Paris-Saint Quentin. Ulterior a putut face aceste determin\u0103ri folosind un <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Tunel_aerodinamic\">tunel de v\u00e2nt cu fum<\/a>, \u0219i o <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Camer%C4%83_foto\">camer\u0103 fotografic\u0103<\/a> special\u0103, de concep\u021bie proprie. Datorit\u0103 acestor experimente a stabilit un profil de arip\u0103 func\u021bional pentru viitoarele sale aparate de zbor si efectul Conda.<\/p>\n<p>&nbsp;<\/p>\n<p><em>Efectul Coanda<\/em><\/p>\n<p>Efectul Coand\u0103 reprezinta devierea jeturilor de fluid \u00een apropierea suprafe\u021belor curbe si a fost pentru prima dat\u0103 observat de Coand\u0103 \u00een <a href=\"https:\/\/ro.wikipedia.org\/wiki\/1910\">1910<\/a> \u00een timpul zborului de testare al unuia din primele sale avioane, <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Coand%C4%83-1910\">Coand\u0103-1910<\/a>, care a fost simultan \u0219i primul avion cu reac\u021bie care a zburat vreodat\u0103. Testarea s-a soldat \u00eens\u0103 cu distrugerea avionului.<\/p>\n<p>\u00cen timpul scurtului zbor, Coand\u0103 a putut observa alinierea apropiat\u0103 de alipire a jeturilor gazelor arse fa\u021b\u0103 de fuzelajul <a href=\"https:\/\/ro.wikipedia.org\/wiki\/Avion\">avionului<\/a>. Ulterior, at\u00e2t Coand\u0103 c\u00e2t \u0219i al\u021bi savan\u021bi au studiat intensiv \u0219i extensiv acest efect, care este denumit astfel \u00een onoarea sa.<\/p>\n<p>Explica\u021bia fenomenului &#8211; Dup\u0103 ie\u0219irea din canal, jetul antreneaz\u0103 particulele mediului ambiant, \u00een partea \u00een care nu exist\u0103 voletul \u0219i particulele fluide situate \u00eentre jet \u0219i volet. Dac\u0103 voletul este suficient de lung, locul particulelor aspirate din domeniul situat \u00eentre volet si jet nu mai poate fi luat de particulele care vin din afara acestui domeniu \u0219i depresiunea astfel creat\u0103 deviaz\u0103 curgerea \u00een direc\u021bia voletului.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/static.rumaniamilitary.ro\/wp-content\/uploads\/2017\/03\/Slats_and_flaps.jpg\" alt=\"-efectul Coanda-\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Inven\u021bii \u0219i descoperiri<\/em><\/h2>\n<ul>\n<li>1910: Coand\u0103-1910, o aeronav\u0103 experimental\u0103 construit\u0103 pe principiul propulsiei reactive .<\/li>\n<li>1911: O aeronav\u0103 alimentat\u0103 de dou\u0103 motoare care ac\u021bioneaz\u0103 o singur\u0103 elice &#8211; configura\u021bia a anulat cuplul motoarelor.<\/li>\n<li>a inventat un nou material decorativ pentru utilizare \u00een construc\u021bii, beton-bois, utilizat pentru decora\u021biunile arhitecturale (Palatul Culturii din Ia\u0219i, construit \u00een 1925, a fost decorat \u00een \u00eentregime cu ajutorul materialului Coand\u0103);<\/li>\n<li>1926: Lucr\u00e2nd \u00een Rom\u00e2nia, Coand\u0103 a dezvoltat un dispozitiv pentru detectarea lichidelor subterane, util \u00een prospectarea petrolului. La pu\u021bin timp dup\u0103 aceea, \u00een regiunea Golfului Persic, a proiectat un sistem pentru forarea petrolului offshore.<\/li>\n<li>Cea mai faimoas\u0103 descoperire a lui Coand\u0103 este efectul Coand\u0103. Acest efect a fost utilizat \u00een multe inven\u021bii aeronautice.<\/li>\n<li>Un sistem modular de desalinizare a apei de mare \u0219i transformare \u00een ap\u0103 dulce, bazat\u0103 pe energia solar\u0103, un sistem curat, ecologic \u0219i adaptabil.<\/li>\n<\/ul>\n<p>De-a lungul carierei sale, lui Henri Coanda I s-au acordat numeroase brevet in diverse domenii, primind, de asemenea, titluri onorifice, printre care si cel de Doctor Honoris Causa, de catre Universitatea Politehnica Bucuresti, in cadrul careia a reorganizat catedra de inginerie aerospatiala, cu ajutorul academicianului Elie Carafoli.<\/p>\n<p>[\/et_pb_text][et_pb_divider admin_label=&#8221;Divider&#8221; color=&#8221;rgba(147,175,193,0.39)&#8221; show_divider=&#8221;on&#8221; divider_style=&#8221;solid&#8221; divider_position=&#8221;top&#8221; hide_on_mobile=&#8221;on&#8221;] [\/et_pb_divider][et_pb_comments admin_label=&#8221;Comments&#8221; show_avatar=&#8221;on&#8221; show_reply=&#8221;on&#8221; show_count=&#8221;off&#8221; background_layout=&#8221;light&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; custom_button=&#8221;off&#8221; button_letter_spacing=&#8221;0&#8243; button_use_icon=&#8221;default&#8221; button_icon_placement=&#8221;right&#8221; button_on_hover=&#8221;on&#8221; button_letter_spacing_hover=&#8221;0&#8243;] [\/et_pb_comments][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243;][et_pb_blog admin_label=&#8221;Blog&#8221; fullwidth=&#8221;off&#8221; include_categories=&#8221;11&#8243; show_thumbnail=&#8221;off&#8221; show_content=&#8221;off&#8221; show_more=&#8221;off&#8221; show_author=&#8221;on&#8221; show_date=&#8221;on&#8221; show_categories=&#8221;off&#8221; show_comments=&#8221;off&#8221; show_pagination=&#8221;on&#8221; offset_number=&#8221;0&#8243; use_overlay=&#8221;off&#8221; background_layout=&#8221;light&#8221; use_dropshadow=&#8221;on&#8221; use_border_color=&#8221;on&#8221; border_color=&#8221;#e5e5e5&#8243; border_style=&#8221;solid&#8221;] [\/et_pb_blog][\/et_pb_column][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Henri Marie Coand\u0103 (7 Iunie 1886 \u2013 25 Noiembrie 1972) a fost un academician si inginer roman, pionier al aviatiei si inventator al unui avion cu reactie, fara elice, numit conventional Coanda-1910 si reprezentand un subiect foarte controversat\u00a0\u00een anul 1950. De asemenea, el a construit o aerodina lenticulara si a descoperit principiul care ii [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2},"_links_to":"","_links_to_target":""},"categories":[108],"tags":[252],"class_list":["post-6874","post","type-post","status-publish","format-standard","hentry","category-aviatie-si-astronautica","tag-henri-coanda"],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Henri Marie Coand\u0103 - Alumni Politehnica Aerospace Engineering<\/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:\/\/inginerie.aero\/index.php\/ro\/2017\/11\/08\/henri-marie-coanda-2\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Henri Marie Coand\u0103 - Alumni Politehnica Aerospace Engineering\" \/>\n<meta property=\"og:description\" content=\"&nbsp; Henri Marie Coand\u0103 (7 Iunie 1886 \u2013 25 Noiembrie 1972) a fost un academician si inginer roman, pionier al aviatiei si inventator al unui avion cu reactie, fara elice, numit conventional Coanda-1910 si reprezentand un subiect foarte controversat\u00a0\u00een anul 1950. 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