Othman AMMAR
Bouguenais
Bâtiment: Building: Darcy
Bureau: Office: 019
Othman AMMAR
PhD student in the COSYS department at Université Gustave Eiffel, I work under the supervision of Romain Noël, Christophe Droz and Julien le Scornec. My doctoral project focuses on energy harvesting for Structural Health Monitoring (SHM) systems. The main goal of my project is to build a multiphysics particle-based model of the Seebeck effect. I am combining phonon Boltzmann transport with homogenization to help optimize thermoelectric metamaterials. I also want to prove my work is right by testing a prototype.
Short bio
I first earned my Bachelors degree in Mathematics and Computer Science from the University of Nîmes. In 2023 I started a Masters program in Applied Mathematics and Modeling at the University of Rouen. In this program, I specialized in Mathematical Modeling and Numerical Methods. This program gave me a start in numerical simulation. I studied diverse materials like partial differential equations, asymptotic methods and scientific programming. My studies also covered other mathematical fields like analysis, periodic homogenization and the modeling of physical systems.
For my Masters thesis, I spent six months as an intern at the LaSIE CNRS laboratory (University of La Rochelle). My work mostly focused on the homogenization of parabolic PDEs with time boundary layers. I created a time-scale approach to find solutions in cases where old homogenization methods do not work well. I used tools like two-scale expansions, cell problems and effective conductivity tensors. I believe these tools will work perfectly for the homogenization of metamaterials.
In October 2026, I began my PhD at Université Gustave Eiffel. My research is focusing on building a modeling and simulation framework for the Seebeck effect. I am using this framework for SHM systems. In order to achieve this, I am combining phonon Boltzmann transport, asymptotic homogenization and experimental validation, on a TEG-powered prototype.
