Exploració per autor "Cottereau, Régis"
Ara es mostren els items 1-4 de 4
-
A stable XFEM formulation for multi-phase problems enforcing the accuracy of the fluxes through Lagrange multipliers
Díez, Pedro; Cottereau, Régis; Zlotnik, Sergio (2013-11-02)
Article
Accés obertWhen applied to diffusion problems in a multi-phase setup, the popular extended finite element method (XFEM) strategy suffers from an inaccurate representation of the local fluxes in the vicinity of the interface. The XFEM ... -
Enforcing interface flux continuity in enhanced XFEM: stability analysis
Díez, Pedro; Zlotnik, Sergio; Cottereau, Régis (2012)
Text en actes de congrés
Accés restringit per política de l'editorialXFEM is found to be an efficient approach for solving multiphase problems. -
Fast r-adaptivity for multiple queries of heterogeneous stochastic material fields
Cottereau, Régis; Díez, Pedro (2015-10-01)
Article
Accés obertWe present an r-adaptivity approach for boundary value problems with randomly fluctuating material parameters solved through the Monte Carlo or stochastic collocation methods. This approach tailors a specific mesh for each ... -
Numerical modeling of erosion using an improvement of the extended finite element method
Cottereau, Régis; Díez, Pedro (2011)
Article
Accés obertWe present in this paper a numerical model of the erosion of a soil that accounts for both the flow in the open fluid and the flow of fluid through the porous soil. The interface between the open fluid and the soil is ...