{"id":62694,"date":"2024-02-29T10:47:46","date_gmt":"2024-02-29T08:47:46","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=62694"},"modified":"2024-02-29T10:47:46","modified_gmt":"2024-02-29T08:47:46","slug":"these-arnoult-t-controle-en-boucle-fermee-dun-ecoulement-decolle-et-de-lecoulement-sur-une-cavite-ouverte-a-laide-de-technologies-mems","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/these-2023\/these-arnoult-t-controle-en-boucle-fermee-dun-ecoulement-decolle-et-de-lecoulement-sur-une-cavite-ouverte-a-laide-de-technologies-mems.html","title":{"rendered":"THESE : ARNOULT T. &#8211; Contr\u00f4le en boucle ferm\u00e9e d&rsquo;un \u00e9coulement d\u00e9coll\u00e9 et de l&rsquo;\u00e9coulement sur une cavit\u00e9 ouverte \u00e0 l&rsquo;aide de technologies MEMS"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_heading  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_58_s1omlicuc40\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2019\/01\/sliders_news1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;border-style:solid;border-color:#000;background-position:0% 0%;background-repeat:no-repeat;width:180px;height:30px;left:0px;top:231px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-quote-right\" style=\"color:#ffffff;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>ACTUALITES<\/ls-layer><\/div><\/div><\/div><div id='after_layer_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-62694'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lt6zdbwg-caea71ee211b2156e16d4479be12ceab\">\n#top .av-special-heading.av-lt6zdbwg-caea71ee211b2156e16d4479be12ceab{\nmargin:0 0 10px 0;\npadding-bottom:4px;\n}\nbody .av-special-heading.av-lt6zdbwg-caea71ee211b2156e16d4479be12ceab .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-lt6zdbwg-caea71ee211b2156e16d4479be12ceab .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-lt6zdbwg-caea71ee211b2156e16d4479be12ceab av-special-heading-h2  avia-builder-el-1  el_after_av_layerslider  el_before_av_hr  avia-builder-el-first'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >THESIS : ARNOULT T. - Closed-loop control of disbonded flow and flow over an open cavity using MEMS technologies <\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18u73nj-dad6a947580930e400fc42ba200e80f1\">\n#top .hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1{\nmargin-top:5px;\nmargin-bottom:5px;\n}\n.hr.av-18u73nj-dad6a947580930e400fc42ba200e80f1 .hr-inner{\nwidth:100%;\n}\n<\/style>\n<div  class='hr av-18u73nj-dad6a947580930e400fc42ba200e80f1 hr-custom  avia-builder-el-2  el_after_av_heading  el_before_av_textblock  hr-left hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<section  class='av_textblock_section av-jriy64i8-2f4600354c0449b610997916bbd9b6bc'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" >\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-13ewzjw-68e036126b913e5028f77311dc66b825\">\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825{\ncolor:#bfbfbf;\nborder-color:#bfbfbf;\n}\n.av_font_icon.av-13ewzjw-68e036126b913e5028f77311dc66b825 .av-icon-char{\nfont-size:60px;\nline-height:60px;\n}\n<\/style>\n<span  class='av_font_icon av-13ewzjw-68e036126b913e5028f77311dc66b825 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue8c9' data-av_iconfont='entypo-fontello' ><\/span><\/span>\n<p><strong><u>ARNOULT T.<\/u><br \/>\n<\/strong><\/p>\n<p>Oral defence: 14 March 2023<br \/>\nPhD thesis in Electronics, Microelectronics, Nanoelectronics and Microwaves, Centrale Lille, ENGSYS Engineering and Systems Sciences, March 14, 2023<\/p>\n<\/div><\/section>\n<section  class='av_textblock_section av-jtefqx33-628129dba2299b2ecd65ebfc92eac29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><div  class='hr av-kjh3zw-4dff888f744b728a1aca9b3a0971493a hr-default  avia-builder-el-6  avia-builder-el-no-sibling'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<h5><strong><span style=\"color: #800000;\">\u00a0<\/span><\/strong><\/h5>\n<h5>Summary:<\/h5>\n<p>In this thesis, a review of closed-loop flow control is proposed. It focuses on two typical flow configurations: separated flow control and open cavity flow control. For separated flow control, closed-loop control is implemented on a NACA 4412 solid flap, using conventional actuators and sensors, respectively Festo valves and hot films. Two control laws are applied: one being data-based, leading to a linear integral controller, and the second being a phenomenological\/model-based law, leading to the synthesis of a non-linear, positive integral controller. These laws enable the control of a disbonded flow to be implemented quickly and easily. The flow control on an open cavity, which is favourable to the use of MEMS actuators, is achieved using MMMS (Micro Magneto Mechanical Systems) microvalves integrated into the upstream wall of the cavity. Open- and closed-loop control tests are being carried out. For closed-loop control, linear controllers are designed using a structured H_infinite synthesis to dampen oscillations in the open cavity. In the final section, technological developments are proposed for both MEMS sensors and actuators with a view to future flow control tests on even more ambitious configurations.<\/p>\n<h5>Abstract:<\/h5>\n<p>In this dissertation, a review of closed-loop control of flows is proposed. It focuses on two typical flow configurations: control of disbonded flows and control of cavity flows. control of disbonded flows and control of open cavity flows. control. With regard to the control of separated flows, closed-loop control is control is implemented on a NACA 4412 type solid flap, using conventional conventional actuators and sensors, respectively Festo valves and and hot film. Two control laws are applied: one based on data, leading to a linear integral controller and the second being a phenomenological law, leading to the synthesis of a nonlinear, positive integral controller. positive integral controller. These laws allow the simple and rapid control of a disbonded flow. The control of flow over an open cavity, favourable to the use of MEMS actuators, is achieved using MMMS (Micro Magneto Mechanical Systems) microvalves integrated into the upstream upstream wall of the cavity. Open- and closed-loop control tests are carried out. For closed-loop control, linear controllers are designed using a structured H_infinite synthesis to dampen the oscillations of the open cavity. oscillations of the open cavity. In the final section, technological developments proposed for both MEMS sensors and actuators with a view to future control future flow control tests on even more ambitious configurations. more ambitious configurations.<\/p>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[318],"tags":[],"class_list":["post-62694","post","type-post","status-publish","format-standard","hentry","category-these-2023"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/62694","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=62694"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/62694\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=62694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=62694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=62694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}