Stéphanie Chaillat-Loseille
Unité de Mathématiques Appliquées (UMA)
CNRS Research Scientist
HDR
I am CNRS research scientist in the lab POEMS. I participate to the animation of the GDR Ondes within the modelisation and simulation thematic group (https://gdr-ondes.cnrs.fr/groupes-thematiques/gt1-modelisation-et-simulation/)
I am also member of the Academic Council of Institut Polytechnique de Paris and in charge of the parity, diversity and equal opportunities committee.
Research and education activities
My research concerns the proposition and study of fast algorithms and numerical methods to simulate wave propagation problems in large scale domains, e.g., acoustic wave propagation or seismic wave propagation. My research is always driven by realistic physical problems. My expertise concerns numerical methods for PDEs, fast algorithms and efficient (including parallel) programming. The originality of my research is to develop and improve the boundary element method for mechanical problems: simulation of seismic waves in the soil, underwater explosions in the ocean, contact problems, radiated noise in different configurations ... All my research work is integrated in the fast solver COFFEE (https://uma.ensta-paris.fr/soft/COFFEE/) that I distribute within the framework of collaborations
In addition to my research activites, I participate to the teachings at ENSTA ParisTech.
HAL Publications
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Efficient evaluation of three-dimensional Helmholtz Green’s functions tailored to arbitrary rigid geometries for flow noise simulations
Pré-publication, Document de travail Published on 18/10/2021 co-written by Stéphanie Chaillat, Benjamin Cotté, Jean-François Mercier, Gilles Serre, Nicolas Trafny -
Improvement of hierarchical matrices for 3D elastodynamic problems with a complex wavenumber
Pré-publication, Document de travail Published on 16/06/2021 co-written by Laura Bagur, Stéphanie Chaillat, Patrick Ciarlet -
Analytical preconditioners for Neumann elastodynamic Boundary Element Methods
Article dans une revue Published on 02/03/2021 co-written by Stéphanie Chaillat, Marion Darbas, Frédérique Le Louër -
A fast boundary element based solver for localized inelastic deformations
Article dans une revue Published on 01/12/2020 co-written by Federico Ciardo, Brice Lecampion, François Fayard, Stéphanie Chaillat -
On the efficiency of nested GMRES preconditioners for 3D acoustic and elastodynamic H-matrix accelerated Boundary Element Methods
Article dans une revue Published on 01/08/2020 co-written by Félix D. Kpadonou, Stéphanie Chaillat, Patrick Ciarlet -
A fast boundary element method using the Z-transform and high-frequency approximations for large-scale 3D transient wave problems
Article dans une revue Published on 01/01/2020 co-written by Damien Mavaleix-Marchessoux, Marc Bonnet, Stéphanie Chaillat, Bruno Leblé -
Contributions to the modelling of acoustic and elastic wave propagation in large-scale domains with boundary element methods
HDR Published on 29/03/2019 by Stéphanie Chaillat-Loseille -
An efficient preconditioner for adaptive Fast Multipole accelerated Boundary Element Methods to model time-harmonic 3D wave propagation
Article dans une revue Published on 01/01/2019 co-written by Faisal Amlani, Stéphanie Chaillat, Adrien Loseille -
Metric-based anisotropic mesh adaptation for 3D acoustic boundary element methods
Article dans une revue Published on 01/11/2018 co-written by Stéphanie Chaillat, Samuel P Groth, Adrien Loseille -
Theory and implementation of $\mathcal{H}$-matrix based iterative and direct solvers for Helmholtz and elastodynamic oscillatory kernels
Article dans une revue Published on 08/09/2017 co-written by Stéphanie Chaillat, Luca Desiderio, Patrick Ciarlet -
Calcul des opérateurs d'impédance en Interaction Sol-Structure: méthode éléments de frontière accélérée par méthode multipôle rapide
Communication dans un congrès Published on 15/05/2017 co-written by Zouhair Adnani, Stéphanie Chaillat, Marc Bonnet, Alex Nieto Ferro, Nicolas Greffet -
3D metric-based anisotropic mesh adaptation for the fast multipole accelerated boundary element method in acoustics
Communication dans un congrès Published on 01/01/2017 co-written by Faisal Amlani, Stéphanie Chaillat, Samuel P Groth, Adrien Loseille -
Fast iterative boundary element methods for high-frequency scattering problems in 3D elastodynamics
Article dans une revue Published on 01/01/2017 co-written by Stéphanie Chaillat, Marion Darbas, Frédérique Le Louër -
Seismic Wave Amplification in 3D Alluvial Basins: Aggravation factors from Fast Multipole BEM Simulations
Communication dans un congrès Published on 01/01/2017 co-written by Kristel Carolina Meza Fajardo, Jean-François Semblat, Stéphanie Chaillat, Luca Lenti -
Seismic Wave Amplification in 3D Alluvial Basins: 3D/1D Amplification Ratios from Fast Multipole BEM Simulations
Article dans une revue Published on 01/06/2016 co-written by Kristel Carolina Meza Fajardo, Jean-François Semblat, Stéphanie Chaillat, Luca Lenti -
Approximate local Dirichlet-to-Neumann map for three-dimensional time-harmonic elastic waves
Article dans une revue Published on 03/09/2015 co-written by Stéphanie Chaillat, Marion Darbas, Frédérique Le Louër -
A Wideband Fast Multipole Method for the Helmholtz Kernel: Theoretical Developments
Article dans une revue Published on 13/05/2015 co-written by Stéphanie Chaillat, Francis Collino -
A Wideband Fast Multipole Method for the Helmholtz kernel: Theoretical developments
Rapport Published on 01/03/2015 co-written by Stéphanie Chaillat, Francis Collino -
A new Fast Multipole formulation for the elastodynamic half-space Green's tensor
Article dans une revue Published on 01/01/2014 co-written by Stéphanie Chaillat, Marc Bonnet -
Seismic elastic modeling for seismic imaging
Communication dans un congrès Published on 01/01/2013 co-written by Jean Virieux, Romain Brossier, Stéphanie Chaillat, A. D. Duchkov, Vincent Etienne, Bruno Lombard, Stéphane Operto -
FaIMS: A fast algorithm for the inverse medium problem with multiple frequencies and multiple sources for the scalar Helmholtz equation
Article dans une revue Published on 20/06/2012 co-written by Stéphanie Chaillat, George Biros -
A preconditioned 3-D multi-region fast multipole solver for seismic wave propagation in complex geometries
Article dans une revue Published on 01/01/2012 co-written by Stéphanie Chaillat, Jean-François Semblat, Marc Bonnet -
Application of the multi-level time-harmonic fast multipole BEM to 3-D visco-elastodynamics
Article dans une revue Published on 01/01/2012 co-written by Eva Grasso, Stéphanie Chaillat, Marc Bonnet, Jean-François Semblat -
Méthode multipôle rapide multi-niveaux en visco-élastodynamique 3D
Communication dans un congrès Published on 01/01/2011 co-written by Eva Grasso, Stéphanie Chaillat, Jean-François Semblat, Marc Bonnet