Personal profile
Personal profile
Stéphanie Chaillat is CNRS Research Scientist since 2011 and works in the laboratory POEMS at ENSTA Paris. She received her PhD from Ecole Nationale des Ponts et Chaussées in 2008. Her research, always driven by realistic physical problems, concerns the proposition and study of fast algorithms and numerical methods to simulate wave propagation problems in large scale domains. Her expertise concerns numerical methods for PDEs, fast algorithms and efficient (including parallel) programming. She develops and improves 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 this work is integrated in the fast solver COFFEE.
Research Interests
Mathematics, Engineering, Physics and Astronomy, Compuyer Science, Earth and Planetary Sciences, Materials Science
Education/Academic qualification
HDR (PhD Supervision Credentials)
External positions
Junior Researcher, Centre National de la Recherché Scientifique
1 Jan 2017 → …
Junior Researcher, Centre national de la recherche scientifique
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Collaborations and top research areas from the last five years
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Combined boundary element and finite volume methods for modelling fluid-induced seismicity in fault networks within low-permeability rocks
Romanet, P., Ampuero, J. P., Cappa, F., Scuderi, M. M. & Chaillat, S., 1 Dec 2025, In: Geophysical Journal International. 243, 3, ggaf377.Research output: Contribution to journal › Article › peer-review
Open Access -
Efficient boundary integral method to evaluate the acoustic scattering from coupled fluid-fluid problems excited by multiple sources
Pacaut, L., Chaillat, S., Mercier, J. F. & Serre, G., 1 Mar 2025, In: Journal of Computational Physics. 524, 113736.Research output: Contribution to journal › Article › peer-review
Open Access -
Computation of Green s functions for the acoustic scattering by an elastic structure excited by a turbulent flow in water
Pacaut, L., Serre, G., Mercier, J. F., Chaillat, S. & Cotté, B., 1 Jan 2024, 53rd International Congress and Exposition on Noise Control Engineering, Internoise 2024. Societe Francaise d'Acoustique, p. 6010-6021 12 p. (53rd International Congress and Exposition on Noise Control Engineering, Internoise 2024; vol. 8).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Open Access -
Solvability results for the transient acoustic scattering by an elastic obstacle
Bonnet, M., Chaillat, S. & Nassor, A., 1 Aug 2024, In: Journal of Mathematical Analysis and Applications. 536, 1, 128198.Research output: Contribution to journal › Article › peer-review
Open Access -
The Sphericity Paradox and the Role of Hoop Stresses in Free Subduction on a Sphere
Chaillat, S., Gerardi, G., Li, Y., Chamolly, A., Li, Z. H. & Ribe, N. M., 1 Sept 2024, In: Journal of Geophysical Research: Solid Earth. 129, 9, e2024JB029500.Research output: Contribution to journal › Article › peer-review
Open Access -
COMPARISON OF BOUNDARY ELEMENT BASED AND PLANE WAVE APPROXIMATION COMPUTATIONS OF TARGET ECHO STRENGTHS
Pacaut, L., Mercier, J. F., Serre, G. & Chaillat, S., 1 Jan 2023, Forum Acusticum 2023 - 10th Convention of the European Acoustics Association, EAA 2023. European Acoustics Association, EAA, (Proceedings of Forum Acusticum).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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Efficient evaluation of three-dimensional Helmholtz Green's functions tailored to arbitrary rigid geometries for flow noise simulations
Chaillat, S., Cotté, B., Mercier, J. F., Serre, G. & Trafny, N., 1 Mar 2022, In: Journal of Computational Physics. 452, 110915.Research output: Contribution to journal › Article › peer-review
Open Access -
Improvement of hierarchical matrices for 3D elastodynamic problems with a complex wavenumber
Bagur, L., Chaillat, S. & Ciarlet, P., 1 Apr 2022, In: Advances in Computational Mathematics. 48, 2, 9.Research output: Contribution to journal › Article › peer-review
Open Access -
Analytical preconditioners for Neumann elastodynamic boundary element methods
Chaillat, S., Darbas, M. & Louër, F. L., 1 Apr 2021, In: Partial Differential Equations and Applications. 2, 2, 22.Research output: Contribution to journal › Review article › peer-review
Open Access -
Modeling Seismic Wave Propagation and Interaction: Recent Advances and Future Challenges
Semblat, J. F., Chaillat, S., Lenti, L., Meza-Fajardo, K. & Santisi d’Avila, M. P., 1 Jan 2021, Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 2. Barla, M., Di Donna, A. & Sterpi, D. (eds.). Springer Science and Business Media Deutschland GmbH, p. 661-668 8 p. (Lecture Notes in Civil Engineering; vol. 126).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review