{"id":242609,"date":"2021-11-08T00:00:00","date_gmt":"2021-11-07T23:00:00","guid":{"rendered":"https:\/\/cimne.com\/sin-categoria\/severo-ochoa-seminar-video-available-a-fully-explicit-lagrangian-finite-element-method-for-highly-nonlinear-fluid-structure-interaction-problems-by-massimiliano-cremonesi\/"},"modified":"2021-11-08T00:00:00","modified_gmt":"2021-11-07T23:00:00","slug":"severo-ochoa-seminar-video-available-a-fully-explicit-lagrangian-finite-element-method-for-highly-nonlinear-fluid-structure-interaction-problems-by-massimiliano-cremonesi","status":"publish","type":"post","link":"https:\/\/cimne.com\/es\/severo-ochoa-seminar-video-available-a-fully-explicit-lagrangian-finite-element-method-for-highly-nonlinear-fluid-structure-interaction-problems-by-massimiliano-cremonesi\/","title":{"rendered":"Severo Ochoa Seminar [Video available!] &#8211; \u00abA fully explicit Lagrangian Finite Element Method for highly nonlinear Fluid-Structure Interaction problems\u00bb, by Massimiliano Cremonesi"},"content":{"rendered":"<p><span class=\"cimne blue\">Wednesday, December 15th, 2021. Time:<\/span>&nbsp;12 noon<\/p>\n<p><span class=\"cimne blue\">Blended Learning &#8211; <b>C-116<\/b> Room, Gran Capit&agrave; S\/N, C1 Building, UPC Campus Nord, Barcelona- <\/span><strong>Link for online session:<\/strong> <a href=\"https:\/\/meet.google.com\/qjo-sttx-dgo\" target=\"_blank\" rel=\"noopener\" title=\"Google Meet\">https:\/\/meet.google.com\/qjo-sttx-dgo<\/a><\/p>\n<p><button class=\"btn btn-default\"><a href=\"https:\/\/youtu.be\/O0VJpFeY1MY\">See video<\/a><\/button><\/p>\n<h5 class=\"cimne blue-background\" style=\"padding-left: 15px;float: none\">ABSTRACT<\/h5>\n<p><span class=\"markedContent\" id=\"page29R_mcid3\"><span role=\"presentation\" dir=\"ltr\">The numerical simulation of fluid-structure interaction (FSI) problems involving free-surfaces&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">is of great interest in many engineering applications. In this talk a partitioned approach for&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">the solution of the FSI problem will be presented. An explicit version of the Lagrangian&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">Particle Finite Element Method (PFEM) is employed for the fluid modelling while the solid&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">domain is discretized with a standard Finite Element Method (FEM). The proposed fully&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">Lagrangian description is particularly effective in the simulation of FSI problems with free&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">surface <\/span><span role=\"presentation\" dir=\"ltr\">flows <\/span><span role=\"presentation\" dir=\"ltr\">and&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">large <\/span><span role=\"presentation\" dir=\"ltr\">structural <\/span><span role=\"presentation\" dir=\"ltr\">displacements, <\/span><span role=\"presentation\" dir=\"ltr\">since <\/span><span role=\"presentation\" dir=\"ltr\">the <\/span><span role=\"presentation\" dir=\"ltr\">fluid <\/span><span role=\"presentation\" dir=\"ltr\">boundaries <\/span><span role=\"presentation\" dir=\"ltr\">are&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">automatically defined by the position of the mesh nodes with no need for interface tracking&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">algorithms. The conditional stability of explicit time integration schemes requires the use of&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">time increments proportional to the size of the element in the mesh. To drastically reduce&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">the computational time, a novel efficient runtime mesh smoothing algorithm for explicit&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">Lagrangian PFEM will be presented. <\/span><\/span><span class=\"markedContent\" id=\"page29R_mcid4\"><span role=\"presentation\" dir=\"ltr\">The coupling between the fluid and solid domains is treated with a Domain Decomposition&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">approach. The proposed method allows for different time-steps in the two subdomains and&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">for non conforming meshes at the interfaces between the solid and fluid domains. The&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">method ensures strong coupling and stability of the partitioned solver, retaining at the same&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">time an overall system of fully decoupled explicit equations. <\/span><\/span><span class=\"markedContent\" id=\"page29R_mcid5\"><span role=\"presentation\" dir=\"ltr\">2D and 3D test-cases will be presented to validate the proposed coupling technique. The&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">explicit scheme for both the fluid and solid subdomains, together with the explicit treatment&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">of the coupling, makes this method appealing for applications in a variety of engineering&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">problems with fast dynamics and\/or a high degree of non-linearity.<\/span><\/span><\/p>\n<h5 class=\"cimne blue-background\" style=\"padding-left: 15px;float: none\">SPEAKER CV<\/h5>\n<p><span class=\"markedContent\" id=\"page29R_mcid7\"><span role=\"presentation\" dir=\"ltr\"><\/span><span role=\"presentation\" dir=\"ltr\"> <\/span><span role=\"presentation\" dir=\"ltr\">Massimiliano Cremonesi is Associate Professor of Solid Mechanics at the&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">Department of Civil and Environmental Engineering of Politecnico di Milano (Italy). <\/span><\/span><span class=\"markedContent\" id=\"page29R_mcid8\"><span role=\"presentation\" dir=\"ltr\">Massimiliano <\/span><span role=\"presentation\" dir=\"ltr\">received <\/span><span role=\"presentation\" dir=\"ltr\">his <\/span><span role=\"presentation\" dir=\"ltr\">B.Sc. <\/span><span role=\"presentation\" dir=\"ltr\">(2004), <\/span><span role=\"presentation\" dir=\"ltr\">M.Sc. <\/span><span role=\"presentation\" dir=\"ltr\">(2006) <\/span><span role=\"presentation\" dir=\"ltr\">and <\/span><span role=\"presentation\" dir=\"ltr\">Ph.D. <\/span><span role=\"presentation\" dir=\"ltr\">(2010) <\/span><span role=\"presentation\" dir=\"ltr\">degrees <\/span><span role=\"presentation\" dir=\"ltr\">from&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">Politecnico di Milano (Italy). During his PhD, in 2017 and 2009, he was a visit Ph.D. student at&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">CIMNE at the Universitat Polit&egrave;cnica de Catalunya (Spain). Upon earning the Ph.D. degree, in&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">2011 he joined the Laboratoire de M&eacute;canique et Technologie (LMT) at the &Eacute;cole Normale&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">Sup&eacute;rieure de Cachan (France) for a PostDoc, then he went back to Politecnico di Milano&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">where in 2014 he is appointed as Assistant Professor and in 2019 as Associate Professor. <\/span><\/span><span class=\"markedContent\" id=\"page29R_mcid9\"><span role=\"presentation\" dir=\"ltr\">His research interests include the numerical simulation of fluid flow for compressible and&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">incompressible applications, the fluid-structure interaction, the simulation of multiscale&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">problems with model order reduction techniques and the analysis of solid dissipation in&nbsp;<\/span><span role=\"presentation\" dir=\"ltr\">micro-structures.<\/span><\/span><\/p>\n<p><button class=\"btn btn-default\"><a href=\"https:\/\/www.cimne.com\/vnews\/11218\" style=\"color: white !important\">See Seminar Programme 2021<\/a><\/button><\/p>\n<p>&lt;!&#8211;<\/p>\n<div style=\"padding: 5px;width: 25%;border: 1px #CCC solid;text-align: center;float: left;margin-left: 10px\"><a href=\"https:\/\/forms.gle\/EjvAe3YRHte6hiwL6\">Register now!<\/a><\/div>\n<\/p>\n<p>&#8211;&gt;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wednesday, December 15th, 2021. Time:&nbsp;12 noon Blended Learning &#8211; C-116 Room, Gran Capit&agrave; S\/N, C1 Building, UPC Campus Nord, Barcelona- Link for online session: https:\/\/meet.google.com\/qjo-sttx-dgo See video ABSTRACT The numerical simulation of fluid-structure interaction (FSI) problems involving free-surfaces&nbsp;is of great interest in many engineering applications. In this talk a partitioned approach for&nbsp;the solution of the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":242610,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","slim_seo":{"title":"Severo Ochoa Seminar [Video available!] - \"A fully explicit Lagrangian Finite Element Method for highly nonlinear Fluid-Structure Interaction problems\", by Massimiliano Cremonesi - CIMNE","description":"Wednesday, December 15th, 2021. Time: &nbsp;12 noon Blended Learning - C-116 Room, Gran Capit&agrave; S\/N, C1 Building, UPC Campus Nord, Barcelona- Link for onl"},"footnotes":""},"categories":[100],"tags":[216],"class_list":["post-242609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seminars","tag-seminars"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/posts\/242609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/comments?post=242609"}],"version-history":[{"count":0,"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/posts\/242609\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/media\/242610"}],"wp:attachment":[{"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/media?parent=242609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/categories?post=242609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimne.com\/es\/wp-json\/wp\/v2\/tags?post=242609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}