{"id":53507,"date":"2022-06-23T09:50:42","date_gmt":"2022-06-23T07:50:42","guid":{"rendered":"https:\/\/www.iemn.fr\/?p=53507"},"modified":"2022-11-24T11:08:52","modified_gmt":"2022-11-24T09:08:52","slug":"these-de-aymeric-roux-bulles-et-antibulles-armurees-et-pression-de-radiation-auto-induite","status":"publish","type":"post","link":"https:\/\/www.iemn.fr\/en\/a-la-une\/these-de-aymeric-roux-bulles-et-antibulles-armurees-et-pression-de-radiation-auto-induite.html","title":{"rendered":"Th\u00e8se de Aymeric ROUX : \u201cBulles et antibulles armur\u00e9es et pression de radiation auto-induite\u201d"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-qs6ibn-0907374fddaef0839286ec7a926a7eab\">\n.flex_column.av-qs6ibn-0907374fddaef0839286ec7a926a7eab{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-qs6ibn-0907374fddaef0839286ec7a926a7eab av_one_full  avia-builder-el-0  avia-builder-el-no-sibling  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-l4qq5492-43724c2091677f532226721400571d5b'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h3 style=\"text-align: center;\">Th\u00e8se de Aymeric Roux<br \/>\n\u201cBulles et antibulles armur\u00e9es et pression de radiation auto-induite\u201d<\/h3>\n<blockquote>\n<p>Soutenance le vendredi 1er Juillet 2022 \u00e0 13h45<br \/>\nAmphitheater of the IEMN - Central Laboratory - Villeneuve d'Ascq<\/p>\n<\/blockquote>\n<h4>Jury :<\/h4>\n<p>Micha\u00ebl Baudoin, Professeur, IEMN \/ Universit\u00e9 de Lille, Directeur de th\u00e8se<br \/>\nAlexis Duchesne, Encadrant, Ma\u00eetre de Conf\u00e9rence, IEMN \/ Universit\u00e9 de Lille, Encadrant<\/p>\n<p>Emmanuelle Rio, Professeur LPS, Orsay, Universit\u00e9 de Paris Saclay, Rapporteur<br \/>\nPhilippe Marmottant, Directeur de recherche CNRS, LIP Grenoble, Rapporteur<br \/>\nIsabelle Cantat, Professeure IPR, Universit\u00e9 de Rennes 1, Examinatrice<br \/>\nSt\u00e9phane Dorbolo, Ma\u00eetre de recherche, Universit\u00e9 de Li\u00e8ge, Examinateur<br \/>\nFarzam Zoueshtiagh, Professeur IEMN \/ Universit\u00e9 de Lille, Invit\u00e9<\/p>\n<h4>Summary:<\/h4>\n<p>Synth\u00e8se et vieillissement de bulles et antibulles stabilis\u00e9es par adsorption de particules \u2013 Pression de radiation acoustique auto-induite par une bulle en translation<\/p>\n<p>Les bulles de savon et les antibulles sont des objets fragiles et \u00e9ph\u00e9m\u00e8res. Le drainage, l\u2019\u00e9vaporation, la dissolution de l\u2019air dans le liquide ou le contact entre les films minces et des impuret\u00e9s pr\u00e9sentes dans les fluides environnants sont autant de facteurs qui entra\u00eenent rapidement leur ouverture. Dans cette th\u00e8se, nous avons montr\u00e9 que les bulles pouvaient \u00eatre stabilis\u00e9es en saturant l\u2019interface avec des particules microm\u00e9triques et en utilisant un m\u00e9lange eau\/glyc\u00e9rol. Ces particules, en formant des ponts capillaires, suppriment le drainage tandis que le glyc\u00e9rol permet de compenser l\u2019\u00e9vaporation du film liquide. Les bulles \u00ab en armure \u00bb ainsi con\u00e7ues pr\u00e9sentent des temps de vie allant jusqu\u2019\u00e0 15 mois. En immergeant une goutte couverte de particules microm\u00e9triques on peut \u00e9galement stabiliser des antibulles pendant plus de 80 jours. Leur vieillissement et les m\u00e9canismes d\u2019ouverture (permettant par exemple de lib\u00e9rer le liquide et de faire remonter l\u2019armure \u00e0 la surface) peuvent \u00eatre ma\u00eetris\u00e9s en ajustant la proportion de glyc\u00e9rol et le volume du film d\u2019air qui entoure l\u2019antibulle. Le vieillissement de ces deux objets a \u00e9t\u00e9 rationalis\u00e9 en mod\u00e9lisant les flux d\u2019\u00e9vaporation et d\u2019absorption d\u2019eau. Ces nouveaux objets offrent des perspectives pour la fabrication respectivement de capteurs d\u2019humidit\u00e9 et de microtransporteurs de liquides. On propose finalement le calcul de la pression de radiation auto-induite par une bulle qui oscille radialement. Cette force s\u2019oppose au d\u00e9placement de la bulle quand elle est en translation \u00e0 petit nombre de Mach.<\/p>\n<h4>Abstract:<\/h4>\n<p>Synthesis and aging of bubbles and antibubbles stabilized by particles adsorption \u2013 Acoustic self-induced radiation pressure of a translating bubble<\/p>\n<p>Soap bubbles and antibubbles are fragile and ephemeral. Multiple factors can make their opening happen, such as drainage, evaporation, air dissolution in the liquid or external perturbations. In this thesis, we show that bubbles can be stabilized by saturating its interface with micrometric particles and using a water\/glycerol mixture. Sustained by capillary bridges, these particles neutralize drainage while the glycerol compensates for the liquid film evaporation. The so called armoured bubbles can live for more than 15 months. We are able to stabilize antibubbles for more than 80 days by immersing a liquid marble. Their aging and their opening mechanism can be controlled by settling the glycerol proportion and the volume of the liquid film that encompass the antibubble. It allows for instance to free the liquid and then make the armour rise up to the surface. The aging of both these objects is rationalized by modeling the water absorption and evaporation flux. These two new objects unveil innovative prospects such as humidity controllers or liquid microcarriers. Finally, we propose to compute the self-induced radiation pressure for a bubble that oscillates radially. This force is opposed to the displacement of the bubble when it is translating at a low Mach number.<\/p>\n<\/div><\/section><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":53513,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,65,316],"tags":[],"class_list":["post-53507","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-la-une","category-agenda","category-theses-2022"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/53507","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=53507"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/posts\/53507\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media\/53513"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=53507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/categories?post=53507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/tags?post=53507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}