Welcome to my academic page.
Introduction
I am a PhD student in numerical simulations under the direction of Alexandre Ern at CERMICS. My other supervisors are Olivier Jamond (CEA) and Florence Drui (CEA).
PhD topic : I am working on the use of HHO (Hybrid-high order) methods in the context of structural dynamics. The goal is to apply the spacial HHO discrete operator on dynamic equations solved with explicit time algorithms. My first years of PhD were dedicated to the conception of an explicite time integration algorithm for the the acoustic wave equation (linear and non-linear). The last year of my PhD focuses on the application of the algorithm to numerical simulations in fast structural dynamics.
Publications and preprints
- Convergence analysis for the wave equation discretized with hybrid methods in space (HHO, HDG and WG) and the leapfrog scheme in time, Alexandre Ern, Morgane Steins, submitted in Journal of Scientific Computing.
- Time-explicit Hybrid High-Order method for the nonlinear acoustic wave equation,Morgane Steins, Alexandre Ern, Olivier Jamond, Florence Drui, M2AN.
- Convergence analysis of hybrid high-order methods for the wave equation, Erik Burman, Omar Duran, Alexandre Ern, Morgane Steins, Journal of Scientific Computing.
Communications
- Podcast (in French) À la rencontre des doctorants, a nontechnical presentation of my PhD subject, December 2023.
- Explicit Hybrid High-Order (HHO) methods for non-linear dynamic equations at ICOSAHOM 2023, Seoul, August 2023.
- Une méthode HHO explicite pour l’équation des ondes non-linéaires at JCJC-Ondes 2022, Sophia Antipolis, November 2022.
- An explicit HHO method for the wave equation at ECCOMAS Congress 2022, Oslo, June 2022. (Slides)
- An explicit HHO method for the acoustic wave equation, talk at the European Finite Element Fair 2022, Aalto University, Helsinki, June 2022.
- Une méthode HHO explicite pour la dynamique des structures, talk at the CSMA 2022 (15ème colloque nationale en calcul des structures), May 2022. Best poster Award
- Une méthode HHO explicite pour la dynamique des structures, talk at the Congrès des Jeunes Chercheurs en Mathématiques Appliquées, October 2021
Curriculum
I graduated from ENSTA Paris engineering school in Septembre 2020. There I chose to specialize in applied mathematics for numerical simulation. For this purpose I simultaneously studied at Paris-Saclay University, to obtain my master degree from master AMS in 2020.
During my education I had several internship :
- 6 months at EDF Lab in Saclay where I studied a post-processing method for neutron equation.
- 6 months at the BNC in Montreal where I worked on learning algorithms.
- 6 months at CEA Saclay as an introduction for my PhD.
Teaching
- AO102 2021-2022 and 2022-2023 : Dynamic Systems (study of ordinary differential equations). This course is taught to undergraduate students of ENSTA Paris.
- AnaCS 2021-2022 : Analysis and scientific computing for undergraduate engineering students at the ENPC. This course is taught in a flipped classroom.
- Introduction to research project 2021 : Supervision of a research project for a group of four undergraduate student at ENPC. The project aimed at simulating wave propagation phenomena with the finite elements method. The Python computer code was entirely developed by the students.
Affiliations
ENPC CERMICS, École Nationale des Ponts et Chaussées, 6 et 8 av. Blaise Pascal, Cité Descartes – Champs-sur-Marne, 77455 Marne-la-Vallée Cedex 2.
CEA DES/ISAS/DM2S/SEMT/DYN, Dynamic studies lab, 91191 Gif-sur-Yvette Cedex.
INRIA Project-Team SERENA, Building A, 4th floor, Inria Paris, 2 rue Simone Iff, 75589 Paris 12.
Personnal projects
I am interested in gluten-free lifestyle, since I eat gluten-free myself. This lead me to create my own dedicated website : Glutons. I developed the website myself (django for the backend and bootstrap for the front-end) and I also write articles subjects related to gluten-free eating : health, recipes, adresses. Hence, this website is both a personal project dedicated to a subject dear to me, and a technical project, allowing me to employ my technical skills to another area of work than my PhD. Do not hesitate to have a look (only in French for the time being) !