CEA–EDF–Inria summer school

This year the team has organised the 64th edition of the CEA–EDF–Inria summer school, 43 participants attended to the school which took place from June 10 to June 14 at the Centre Inria of the University of Lorraine.

The aim of this summer school was to provide an overview of the automatic and semi-automatic methods currently used to generate hexahedral meshes for academic and industrial purposes. Starting from CAD-like geometric models as input data, recently developed practical and theoretical
methods for generating and manipulating hexahedral meshes were presented. In particular, the following points were addressed:

  • An overview of existing (semi-)automatic methods for generating hexahedral meshes with associated quality criteria;
  • A focus on different representations and methods for generating orientation fields;
  • Notions of global parametrizations and their use in meshing;
  • Polycube methods;
  • Grid intersection methods.

An important part of the course was devoted to computer-based practical exercises to manipulate these concepts using various software packages, ranging from understanding concepts such as orientation fields to interactive generation of block-structured meshes, via mesh quality assessment.

i-Lab prize for Tessael!

Our spin-off company Tessael was awarded a prize at the i-Lab innovation competition organized by Bpifrance. The project is entitled “Subsurface2.0 (Tessael): New 3D mesh technology to de-risk the geological storage of CO2”.

Geological storage of CO2 is now one of the key levers for containing global warming, but to have a significant impact, all geological actors need to commit to this approach. The transition to this new activity presents many challenges, including the lack of operational technologies to anticipate the risks of gas injection in geological strata, which can range from damage to surface equipment to the induction of microseisms. At Tessael, in order to accelerate this transition for operators of all sizes, we are developing an innovative 3D meshing software technology, which fits into the digital twin of the sub-soil allowing more reliable analyses of the environmental risks involved.