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VERSION:2.0
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SUMMARY:Joint Seminar: Civil Engineering and Open Science series
DTSTART:20230203T120000
DTSTAMP:20260510T164911Z
UID:ee66763c51a14f1072fccea69c9aa32251c5e01849efd1e92aa43256
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Jean-François Remacle\nThe Civil Engineering Institute\
 , in collaboration with ENAC Open Science and the EPFL Open Science office
  \, are happy to present:\n\nThe X-MESH method for capturing interfaces\nb
 y Prof. Jean-François Remacle\, from UCLouvain  \n \nIn this presentati
 on\, we develop an innovative approach - X-MESH - to overcome a major diff
 iculty associated with numerical simulation in engineering: we aim to prov
 ide a revolutionary way to track physical interfaces in finite element sim
 ulations. The idea is to use so-called extreme mesh deformations. This new
  approach should allow low computational cost simulations as well as high 
 robustness and accuracy. X-MESH is designed to avoid the pitfalls of curre
 nt ALE methods by allowing topological changes on fixed mesh.\nThe key ide
 a of X-MESH is to allow elements to deform until they reach a zero measure
 . For example\, a triangle can deform into an edge or even a point. This i
 dea is rather extreme and completely revisits the interaction between the 
 meshing community and the computational community\, which for decades have
  been trying to interact through beautiful meshes.\nIn this talk\, we will
  focus on both the mathematical issues related to the use of zero-measure 
 elements and the X-MESH resolution scheme.Several applications will be tar
 geted: the Stefan model of phase change\, two-phase flows and contact betw
 een deformable solids.\n\nThe seminar will be followed by an open discussi
 on on the benefits and obstacles of developing open science projects\, and
  how to rethink the future of research in a more collaborative way. Food w
 ill be provided following the seminar\, to encourage networking and get to
  know the speaker!\n\nAbout the speaker\n \nAfter his Engineering Degree 
 at the University of Liege in Belgium in 1992\, Jean-François Remacle ob
 tained in 1997 a Ph.D. from the same University. He then spent two years a
 t the Ecole Polytechnique de Montréal as a post-doctoral fellow of Prof.
  F. Trochu\, followed by three years at Rensselaer Polytechnic Institute i
 n the research team of Prof. M. Shephard (one year as research associate f
 ollowed by two years as research assistant professor). It was during his s
 tay at Rensselaer that Pr. Remacle started to work closely with Mark Sheph
 ard on mesh generation. Pr. Shephard’s seminal work on mesh generation i
 s one of the most important contributions ever. It was also during that st
 ay that Pr. Remacle started the development of Gmsh\, the open source mesh
  generator. After these five years in Northern America\, Jean-François R
 emacle joined the Université catholique de Louvain in 2002 as an assista
 nt Professor. He then became Associate Professor in 2005 and Full Professo
 r in 2012. In the following years of his return to Europe\, Pr. Remacle de
 dicated a large part of his research to mesh generation.\n \nSince 2002\,
  Pr. Remacle and his colleague Pr. C. Geuzaine from the University of Lie
 ̀ge have continued the development of Gmsh (www.gmsh.info). Gmsh was init
 ially released as an open source in 2003 under the GNU General Public Lice
 nce (GPL). In 2009\, a paper was published in the International Journal fo
 r Numerical Methods in Engineering (IJNME) that describes original feature
 s of Gmsh [GR09]. This paper is the most cited paper of IJNME in the last 
 3 years (https://onlinelibrary.wiley.com/journal/10970207). Gmsh was award
 ed a free software prize at the “trophées du libre” in 2009 . The si
 ze of Gmsh’s user community is now of over 8\,000 regular users\, includ
 ing engineers of major European industries like Siemens\, Dassault\, EDF\,
  Airbus or Snecma. Three Gmsh workshops have been organized\, the last one
  in 2017.\n \nIn 2015\, Pr. Remacle received an ERC Advanced Grant (www.h
 extreme.eu) with two major subjects: fast mesh generation and hexahedral m
 esh generation. Several breakthroughs have been achieved in HEXTREME\, the
  three most significative ones being the developement of the fastest tetra
 hedral mesh generator\, the use of Ginzburg Landau theory for generating q
 uad meshes\, and the development of an algorithm to build combinatorial he
 xahedral meshes whose boundary facets exactly match a given quadrangulatio
 n of the topological sphere.\n \nIn 2022\,  Pr. Remacle received an ERC 
 SYNERGY Grant together with Pr. Moës (Ecole Centrale de Nantes).\n \nSin
 ce 2016\, the papers co-authored by Jean-François Remacle received over 
 6600 citations (Source: Google Scholar). It is interesting to note that th
 ese citations are not only related to mesh generation but to a wide a spec
 trum of computational fields: computational fluid dynamics\, ocean modelin
 g\, computational material science\, fracture mechanics\, biomechanics\, s
 cientific visualization\, high performance computing.\n \nIn parallel to 
 the fundamental developments of the mesh generation\, Pr. Remacle has been
  actively involved in collaborative projects. The fruitful interactions th
 at he had with engineers of major European consortia (Airbus\, Siemens\, D
 assault) have convinced him of the great interest of the European industry
  for new  developments in mesh generation for computational mechanics.
LOCATION:BM 5202 https://plan.epfl.ch/?room==BM%205202 https://epfl.zoom.u
 s/j/67450315388
STATUS:CONFIRMED
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