Laboratoire J. A. Dieudonné

Séminaire de l'équipe EDP Analyse Numérique

Séminaires à venir   -   Liste complète 2023-2025   -   Archives 2009-2023

17/09/2026 
   11:00
   Salle de conférence
Frederic Rousset (Université Paris-Saclay)
   
   
   Gestion: Francesca
24/09/2026 
   11:00
   Salle de conférence
Ksenia Kozhanova (LJAD)
   
   
   Gestion: Francesca
01/10/2026 
   11h
   
Anne-Laure Dalibard (Sorbonne Université)
   
   
11/26/2026 
   11:00
   Salle de conférence
Mejdi Azaiez (INP Bordeaux)
   A monolithic numerical model of solid-liquid phase change problem
   In latent heat storage, certain non-phase change materials (non-PCMs) with high thermal conductivity are incorporated into the phase change materials (PCMs) with the aim of enhancing the efficiency of heat/cold storage. We term this type of non-PCMs as “enhancer”, which includes materials like graphite and copper foam, usually with a complex skeleton structure. In this talk, we propose a phase field model to describe the solidification and melting phenomena of PCMs with enhancer from a microscopic point of view. Our model is governed by the energy equation coupled with the Allen-Cahn equation. A penalty technique is applied in the Allen-Cahn equation to describe the complex structure of the non-PCMs. We use the concept of thermal resistance to define the boundary condition on the contact interface of two materials to ensure the temperature jump. Thanks to the hybrid dual formulation, the temperature can be solved as a monolithic function while satisfying the temperature jump on the material interface. In temporal discretization, a numerical scheme is developed to decouple the phase field from the temperature. In the spatial discretization, the hybrid finite element method, the Raviart-Thomas elements are used to solve the temperature and to satisfy the temperature jump on the interface. 2D and 3D simulations are carried out for both melting and solidification processes of a fossil based organic PCM, RODATHERM60 in the graphite skeleton on different porous structures to validate our model.
   Gestion: Francesca
15/10/2026 
   11:00
   Salle Fizeau
Vanessa Lleras (Univ. de Montpellier)
   
   
   Gestion: Francesca
22/10/2026 
   11:00
   Salle de conférence
JMF ()
   
   
   Gestion: Joris
29/10/2026 
   
   
vacances ()
   
   
05/11/2026 
   11h
   Salle de Conférence
Matthieu Cadiot ()
   
   
   Gestion: Joris
12/11/2026 
   11:00
   Salle de conférence
Datong Zhou (LJAD)
   Kinetic theory on networks: from interacting particles to deep learning
   
   Gestion: Joris
19/11/2026 
   11h
   Salle de Conférence
Annamaria Massimini ()
   
   
   Gestion: Joris
26/11/2026 
   11:00
   Salle de conferences
Mejdi Azaiez (INP Bordeaux)
   
   
   Gestion: Francesca
03/12/2026 
   11:00
   Salle de conférence
Pierre Maréchal (Univ. de Toulouse)
   
   
   Gestion: Joris
10/12/2026 
   11:00
   Salle de conférence
Mingdong He (University of Oxford)
   
   
   Gestion: Francesca
11/02/2027 
   11:00
   Salle de conferences
Laurent Bruneau ( Cergy Paris Univ.)
   
   
   Gestion: Francesca
11/03/2027 
   09h-18h
   Salle de conférences
Michele Coti Zelati (Imperial College)
   Mini-series of lectures on Dynamo theory (workshop ANEDP x MNDF)
   
   Gestion: Isabelle et Florence

Contact: responsables du séminaire