Event List
retrieve:
Return the details about the given Event id.
list:
List all Event objects.
GET /api/v1/events/?format=api&offset=180&ordering=event__url_place_and_room
{ "count": 254, "next": "https://memento.epfl.ch/api/v1/events/?format=api&limit=10&offset=190&ordering=event__url_place_and_room", "previous": "https://memento.epfl.ch/api/v1/events/?format=api&limit=10&offset=170&ordering=event__url_place_and_room", "results": [ { "id": 71592, "title": "Performance Interfaces for SSD-backed Systems", "slug": "performance-interfaces-for-ssd-backed-systems", "event_url": "https://memento.epfl.ch/event/performance-interfaces-for-ssd-backed-systems", "visual_url": "https://memento.epfl.ch/image/32925/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32925/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32925/max-size.jpg", "lang": "en", "start_date": "2026-05-29", "end_date": "2026-05-29", "start_time": "11:00:00", "end_time": "13:00:00", "description": "<u>EDIC candidacy exam</u><br>\r\nExam president: Prof. Sanidhya Kashyap<br>\r\nThesis advisor: Prof. George Candea<br>\r\nCo-examiner: Prof. Thomas Bourgeat<br>\r\n<br>\r\n<u>Abstract</u><br>\r\ncoming soon<br>\r\n<br>\r\n<u>Selected papers</u><br>\r\ncoming soon", "image_description": "", "creation_date": "2026-04-14T14:33:29", "last_modification_date": "2026-04-14T14:33:29", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "INN 326", "url_place_and_room": "https://plan.epfl.ch/?room==INN%20326", "url_online_room": "", "spoken_languages": [], "speaker": "Roshan Ramachandran Nair", "organizer": "", "contact": "[email protected]", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "EDIC candidacy exam", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120376/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/48/?format=api" ] }, { "id": 71448, "title": "Topological properties of rough fluids and plasmas", "slug": "topological-properties-of-rough-fluids-and-plasmas", "event_url": "https://memento.epfl.ch/event/topological-properties-of-rough-fluids-and-plasmas", "visual_url": "https://memento.epfl.ch/image/32796/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32796/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32796/max-size.jpg", "lang": "en", "start_date": "2026-04-24", "end_date": "2026-04-24", "start_time": "14:15:00", "end_time": null, "description": "<p>Abstract:<br>\r\nAs anticipated by Onsager's conjecture, low-regularity solutions of the Euler equations exhibit greater flexibility than classical solutions. In the first part of this talk we focus on steady solutions, showing that in the low-regularity regime their streamlines can realize any prescribed topology, a phenomenon that cannot occur for classical solutions. The key tool is a novel implementation of convex integration that preserves the topology of the streamlines throughout the iteration. In the second part we extend these ideas to the MHD equations, constructing continuous weak solutions with constant nonzero helicity that nevertheless fail to conserve energy and cross helicity.</p>", "image_description": "", "creation_date": "2026-03-25T09:22:27", "last_modification_date": "2026-03-25T09:22:27", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MA B1 11", "url_place_and_room": "https://plan.epfl.ch/?room==MA%20B1%2011", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Dr. Javier Peñafiel-Tomás (ICMAT)", "organizer": "Prof. Maria Colombo", "contact": "Prof. Maria Colombo", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120178/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/259/?format=api" ] }, { "id": 71528, "title": "Wave decay on slowly-rotating extremal Kerr-Newman black holes", "slug": "wave-decay-on-slowly-rotating-extremal-kerr-newman", "event_url": "https://memento.epfl.ch/event/wave-decay-on-slowly-rotating-extremal-kerr-newman", "visual_url": "https://memento.epfl.ch/image/32866/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32866/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32866/max-size.jpg", "lang": "en", "start_date": "2026-05-22", "end_date": "2026-05-22", "start_time": "14:15:00", "end_time": null, "description": "<br>\r\nAbstract: <br>\r\nIn this talk, I will discuss the decay of solutions to the wave equation on slowly-rotating Kerr-Newman black holes. The behavior of waves on extremal spherically symmetric black holes and axisymmetric waves on rotational extremal black holes has seen remarkable recent developments. I will discuss how these developments can be extended to the case of slowly-rotating Kerr-Newman, highlighting the similarities between the structure of the wave operator at null infinity and the structure of the wave operator at the extremal horizon. <br>\r\n ", "image_description": "", "creation_date": "2026-04-01T19:39:32", "last_modification_date": "2026-04-01T19:44:53", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MA B1 11", "url_place_and_room": "https://plan.epfl.ch/?room==MA%20B1%2011", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Dr Allen Fang, University of Muenster", "organizer": "Prof. Georgios Moschidis", "contact": "Prof. Georgios Moschidis", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120280/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 71574, "title": "Entropy methods and nonlinear flows for symmetry and stability results", "slug": "entropy-methods-and-nonlinear-flows-for-symmetry-a", "event_url": "https://memento.epfl.ch/event/entropy-methods-and-nonlinear-flows-for-symmetry-a", "visual_url": "https://memento.epfl.ch/image/32910/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32910/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32910/max-size.jpg", "lang": "en", "start_date": "2026-05-01", "end_date": "2026-05-01", "start_time": "14:15:00", "end_time": null, "description": "<strong>Abstract</strong><br>\r\nThe lecture will be based on entropy methods for nonlinear diffusion equations with two main goals: 1. A review of various results of symmetry for the optimizers of nonlinear interpolation inequalities and a classification of some phase transitions between symmetry and symmetry breaking regimes; 2. Constructive methods for stability results in functional inequalities, including explicit results à la Bianchi-Egnell for Sobolev, log-Sobolev and related functional inequalities. Most of these results are based on a nonlinear carré du champ method.", "image_description": "", "creation_date": "2026-04-12T18:11:57", "last_modification_date": "2026-04-13T11:52:07", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MA B1 11", "url_place_and_room": "https://plan.epfl.ch/?room==MA%20B1%2011", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "<strong>Pof. Jean Dolbeault</strong> (Paris Dauphine University – France)", "organizer": "", "contact": "B. Buffoni, SMA", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120350/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/259/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/238/?format=api", "https://memento.epfl.ch/api/v1/mementos/239/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 71590, "title": "Advection by shears with critical points in the presence of diffusion", "slug": "advection-by-shears-with-critical-points-in-the-pr", "event_url": "https://memento.epfl.ch/event/advection-by-shears-with-critical-points-in-the-pr", "visual_url": "https://memento.epfl.ch/image/32923/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32923/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32923/max-size.jpg", "lang": "en", "start_date": "2026-05-08", "end_date": "2026-05-08", "start_time": "14:15:00", "end_time": null, "description": "<div class=\"elementToProof\">Abstract:<br>\r\nShear flows are one of the most well studied classes of vector fields. An important feature of shear flows is their ability to generate small scales and mix quantities that they transport. For passive scalar transport, these mixing rates can be quantified in a rather straightforward way. </div>\r\n\r\n<div class=\"elementToProof\">However, quantifying mixing rates for 2d Euler linearized around non-monotone shears is surprisingly subtle due to an effect known as vorticity depletion which is not present in the passive transport case. Since real fluids have viscosity, a natural question is to understand whether mixing rates persist in the presence of viscosity. In this talk, I will discuss recent progress on addressing this question for both the passive scalar advection-diffusion equation and the linearized Navier-Stokes equation. Based on joint work with Dallas Albritton (University of Wisconsin), Shan Chen (University of Minnesota), and Hao Jia (University of Minnesota). </div>\r\n\r\n<div class=\"elementToProof\"> </div>", "image_description": "", "creation_date": "2026-04-14T13:45:00", "last_modification_date": "2026-04-14T13:45:00", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MA B1 11", "url_place_and_room": "https://plan.epfl.ch/?room==MA%20B1%2011", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Rajendra Beekie (Imperial College London)", "organizer": "Prof. Maria Colombo", "contact": "Dr. Michele Dolce", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120374/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/259/?format=api" ] }, { "id": 71283, "title": "Symplectic fillings and spinal open books", "slug": "symplectic-fillings-and-spinal-open-books-2", "event_url": "https://memento.epfl.ch/event/symplectic-fillings-and-spinal-open-books-2", "visual_url": "https://memento.epfl.ch/image/32638/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32638/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32638/max-size.jpg", "lang": "en", "start_date": "2026-04-22", "end_date": "2026-04-22", "start_time": "14:15:00", "end_time": "15:15:00", "description": "<p>The classification of the symplectic fillings of a given contact 3-manifold poses an interesting problem. It is motivated by results that demonstrate that the symplectic fillings of a contact 3-manifold hold information on the contact structure. Most notably, the contact structure of any contact 3-manifold that admits a strong symplectic filling is tight. Although the symplectic fillings of certain contact manifolds have been classified, the general classification remains an open problem. Working towards this, one can consider the geography problem for symplectic fillings. In the paper Spine removal surgery and the geography of symplectic fillings, Sam Lisi and Chris Wendl prove the existence of a universal bound for the geography (Euler characteristic and signature) of possible minimal strong symplectic fillings of a closed contact 3-manifold with a supporting planar spinal open book decomposition. Following a brief introduction to symplectic and contact topology, the aim of my talk is to explain Lisi and Wendl's result. For this purpose, I will provide an overview of symplectic fillings and the related geography problem, and introduce spinal open book decompositions. <br>\r\n<br>\r\n </p>", "image_description": "", "creation_date": "2026-03-03T09:23:22", "last_modification_date": "2026-04-15T16:04:09", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MA B1 504", "url_place_and_room": "https://plan.epfl.ch/?room==MA%20B1%20504", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Annika Thiele, Humboldt-Universität zu Berlin", "organizer": "Markus Kirolos", "contact": "Maroussia Schaffner", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119948/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api" ] }, { "id": 71272, "title": "An Artificial Sphincter based on Dielectric Elastomer Actuators in the context of Urinary Incontinence", "slug": "an-artificial-sphincter-based-on-dielectric-elasto", "event_url": "https://memento.epfl.ch/event/an-artificial-sphincter-based-on-dielectric-elasto", "visual_url": "https://memento.epfl.ch/image/32628/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32628/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32628/max-size.jpg", "lang": "en", "start_date": "2026-04-24", "end_date": "2026-04-24", "start_time": "17:00:00", "end_time": null, "description": "<p>Thesis Directors: Prof. Y. Perriard, Dr Y. R. C. Civet<br>\r\nAdvanced Manufacturing doctoral program<br>\r\nThesis Nr. 11322<br>\r\n<br>\r\nTo take part in the public defense, please contact directly the speaker</p>", "image_description": "", "creation_date": "2026-03-02T10:55:01", "last_modification_date": "2026-03-02T10:55:01", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MC A1 272", "url_place_and_room": "https://plan.epfl.ch/?room==MC%20A1%20272", "url_online_room": "https://epfl.zoom.us/j/65298674184?pwd=6zkxmv1la6OeamfImj4QIhp94vzkrl.1", "spoken_languages": [], "speaker": "<strong>Quentin Philippe Mario DE MENECH</strong>", "organizer": "", "contact": "<strong>Quentin Philippe Mario DE MENECH</strong>", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "EDAM", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119932/", "category": { "id": 12, "code": "SOUTE", "fr_label": "Soutenances de thèses", "en_label": "Thesis defenses", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/347/?format=api" ] }, { "id": 71342, "title": "lunch&LEARN: AI for formative feedback. From effective tools to adoption", "slug": "lunchlearn-ai-for-formative-feedback-from-effectiv", "event_url": "https://memento.epfl.ch/event/lunchlearn-ai-for-formative-feedback-from-effectiv", "visual_url": "https://memento.epfl.ch/image/32696/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32696/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32696/max-size.jpg", "lang": "en", "start_date": "2026-04-30", "end_date": "2026-04-30", "start_time": "12:15:00", "end_time": "13:00:00", "description": "<p>We can build the perfect pedagogical tool. But will students actually use and benefit from it?<br>\r\n<br>\r\nThis session explores a question at the heart of the integration of new technology into education: How can a well-designed pedagogical tool be ideally leveraged to truly make a difference in student learning?<br>\r\n<br>\r\n<a href=\"https://people.epfl.ch/fares.fawzi?lang=en\">Fares Fawzi</a> from the <a href=\"https://www.epfl.ch/labs/ml4ed/\">ML4ED</a> lab at EPFL will present his development of a GenAI-powered formative feedback tool that is pedagogically aligned, contextually grounded, and interactive.<br>\r\n<br>\r\nDeployed during an in-class session as well as for exam preparation in a computer science course at EPFL, the tool performed as intended: responses were relevant, accurate, and aligned with pedagogical frameworks for feedback delivery.<br>\r\n<br>\r\nHowever, during this session, we want to invite you to look beyond the pedagogical sophistication of the tool itself, and ask how integration context shapes student engagement and beneficial learning impact.<br>\r\n<br>\r\n- - - - - - - - - - - - - <br>\r\n<br>\r\n<em><strong>lunch&LEARN</strong></em> sessions are intended for anyone who teaches at EPFL. <br>\r\nThis session is hybrid and can be attended in person or <a href=\"https://epfl.zoom.us/meeting/register/itgbPQceSnyGQK_-KbEttA\">followed via zoom</a>.<br>\r\nMost sessions are recorded and can be found on the <a href=\"https://www.youtube.com/playlist?list=PLKZOhx3xKAdI81PA1jwBA_LHHfSjbdEUV\">Center LEARN's YouTube channel</a>.<br>\r\nTo get in touch with the team, to suggest a session or make inquiries, please send an email on <a href=\"mailto:[email protected]\">[email protected]</a></p>", "image_description": "lunch&LEARN flyer for Fares Fawzi's session", "creation_date": "2026-03-10T14:13:42", "last_modification_date": "2026-03-10T14:18:13", "link_label": "Register/access the zoom conference", "link_url": "https://epfl.zoom.us/meeting/register/itgbPQceSnyGQK_-KbEttA", "canceled": "False", "cancel_reason": "", "place_and_room": "ME A3 31", "url_place_and_room": "https://plan.epfl.ch/?room==ME%20A3%2031", "url_online_room": "https://epfl.zoom.us/meeting/register/itgbPQceSnyGQK_-KbEttA", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "<a href=\"https://people.epfl.ch/fares.fawzi?lang=en\">Fares Fawzi</a>, Machine Learning for Education Laboratory ", "organizer": "<a href=\"https://learn.epfl.ch\">Center LEARN</a>", "contact": "<a href=\"mailto:[email protected]\">[email protected]</a>", "is_internal": "True", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "lunch&LEARN, Center LEARN, teaching, learning", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120032/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/416/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/323/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/85/?format=api", "https://memento.epfl.ch/api/v1/mementos/411/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/65/?format=api" ] }, { "id": 70903, "title": "lunch&LEARN: Learning with AI: Designing AI Tutors that foster learning in robotics and CS courses", "slug": "lunchlearn-learning-with-ai-designing-ai-tutors-th", "event_url": "https://memento.epfl.ch/event/lunchlearn-learning-with-ai-designing-ai-tutors-th", "visual_url": "https://memento.epfl.ch/image/32313/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32313/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32313/max-size.jpg", "lang": "en", "start_date": "2026-06-09", "end_date": "2026-06-09", "start_time": "12:15:00", "end_time": "13:00:00", "description": "<strong>// NEW DATE // This event has been rescheduled from 17 March to 9 June 2026!</strong><br>\r\n<br>\r\nHow can AI tutors be designed to support learning rather than shortcutting it?<br>\r\n<br>\r\nIn this presentation, Jérôme Brender (EPFL) will examine how undergraduate students learn with AI tutors in robotics and computer science courses.<br>\r\n<br>\r\nAcross multiple design iterations, he investigated how features such as course-grounded retrieval (RAG), Socratic questioning, and real-time prompt feedback, and debate chatbot, shape students’ engagement, prompting behavior, and learning outcomes.<br>\r\n<br>\r\nHis work focuses on how AI tutors can help students better understand course concepts and become more reflective and effective users of AI tools. The findings provide insights into designing AI tutors that foster critical thinking and support sustainable learning practices.", "image_description": "", "creation_date": "2026-01-21T13:49:42", "last_modification_date": "2026-03-10T14:15:23", "link_label": "Registration/zoom", "link_url": "https://epfl.zoom.us/meeting/register/4V57FBxZR-uhyymvvps-6g", "canceled": "False", "cancel_reason": "", "place_and_room": "ME B1 10", "url_place_and_room": "https://plan.epfl.ch/?room==ME%20B1%2010", "url_online_room": "https://epfl.zoom.us/meeting/register/4V57FBxZR-uhyymvvps-6g", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "<a href=\"https://people.epfl.ch/jerome.brender?lang=en\">Jérôme Brender</a>", "organizer": "Center LEARN", "contact": "[email protected]", "is_internal": "True", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "lunch&LEARN, Center LEARN, teaching, learning", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119400/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/416/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/3/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/323/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/85/?format=api", "https://memento.epfl.ch/api/v1/mementos/65/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/417/?format=api" ] }, { "id": 71345, "title": "MechE Colloquium : Instability and breakdown phenomena in vortical flows", "slug": "meche-colloquium-instability-and-breakdown-pheno-2", "event_url": "https://memento.epfl.ch/event/meche-colloquium-instability-and-breakdown-pheno-2", "visual_url": "https://memento.epfl.ch/image/32805/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32805/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32805/max-size.jpg", "lang": "en", "start_date": "2026-04-28", "end_date": "2026-04-28", "start_time": "12:00:00", "end_time": "13:00:00", "description": "<strong>Summary</strong><br>\r\nVortical structures generated by fixed or rotating lifting surfaces play a central role in many aerodynamic and hydrodynamic flows. Their stability and eventual breakdown influence wake dynamics, mixing processes, and overall flow performance. This seminar presents two recent studies exploring vortex stability and vortex breakdown.<br>\r\nPart I – Short-wave instability of a helical vortex<br>\r\nThe first part of the seminar discusses the short-wave instability of a helical vortex generated by a rotating blade. Combining experimental dye visualisations, numerical simulations, and theoretical analysis, the study identifies displacement perturbations whose wavelengths are small relative to the helix radius and pitch but may remain large compared with the vortex core size. Stability analysis based on experimentally measured vortex profiles reveals broad bands of unstable wavenumbers for several vortex bending modes. These results differ from predictions of existing theories for short-wave vortex instability. Similar instability modes are also observed in arrays of straight vortices, indicating that the phenomenon is not related to vortex curvature. A theoretical examination of the dispersion relation of Kelvin modes for the measured vortex profiles uncovers a previously unidentified family of modes associated with the specific vorticity distribution. Their non-resonant interaction through the strain field provides a plausible explanation for the experimentally observed instability features.<br>\r\nPart II – Two-phase wing-tip vortex breakdown<br>\r\nThe second part presents the discovery of a new flow feature observed in the wake of a rectangular wing in water: the breakdown of the wing-tip vortex triggered by the injection of air into the vortex core downstream of the wing. Experiments show that, for certain combinations of Reynolds number and angle of attack, a stationary air bubble becomes trapped within the vortex core at a finite distance behind the wing and can persist for several minutes even after the air injection is stopped. Under different conditions, the bubble may drift upstream or downstream, or it may disintegrate immediately. Measurements of bubble properties and vortex characteristics reveal that the breakdown behaviour depends primarily on the vortex circulation and on the axial flow component within the core. The formation of a stable breakdown bubble occurs only when a velocity excess relative to the free stream is present.<br>\r\nThe two studies highlight new mechanisms governing the stability and transformation of vortical flows, offering insight into the dynamics of vortex instabilities and vortex-core modifications in fluid systems.<br>\r\n<br>\r\n<br>\r\n<strong>Biography</strong><br>\r\nThomas Leweke graduated from RWTH Aachen University in Germany in 1990 with a “Diplom” (Master) in Physics. He completed his PhD in 1994 at the Université de Provence in Marseille, on the experimental study and modelling of bluff-body wakes. After a post-doctoral stay at Cornell University on vortex instabilities, he joined the IRPHE institute in Marseille in 1996 as a CNRS Researcher and became a Senior Researcher in 2007. His research focusses on the experimental study of fundamental aspects of fluid mechanics, especially in vortex dynamics and fluid-structure interactions, with relevance to applications. He was the co-organiser of a conference series on Bluff-Boddy Wakes and Vortex-Induced Vibrations (BBVIV), and an associate editor for the Journal of Fluids and Structures and the Journal of Visualization", "image_description": "", "creation_date": "2026-03-10T14:46:55", "last_modification_date": "2026-03-26T08:56:55", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MED 0 1418", "url_place_and_room": "https://plan.epfl.ch/?room==MED%200%201418", "url_online_room": "https://epfl.zoom.us/j/61360740951", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Thomas Leweke, IRPHE, CNRS, Marseille, France", "organizer": "MechE Colloquium", "contact": "Prof. Eunok Yim", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "MechE Colloquium : phenomena in vortical flows", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120036/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/232/?format=api", "https://memento.epfl.ch/api/v1/mementos/270/?format=api" ] } ] }
