I am a development engineer at Stiesdal, focused on the development of industrial alkaline electrolysers for green hydrogen production. My tasks consist in performing numerical simulations and testing of existing and future electrolyser technology.

My project is about the topology optimization of heat sinks and plate heat exchangers using topology optimization. Topology optimization is a mathematical method which optimizes the material layout within a domain, in regards to a set of loads, boundary conditions and constraints. The goal is to maximise the performances of the system (heat transfer in the case of heat exchangers) with a high degree of freedom concerning the final geometry, compared to traditional sizing and shape optimization tools.Topology Optimization is based on a Finite Element Method formulation of the physical equations (Navier Stokes equations for fluid & Convection/Diffusion equation for thermal) and the design is optimized by a gradient descent algorithm such as MMA.

My work focused on the optimisation of fluidic and thermal systems as units for heat pumps and renewable energy solutions using CFD. It is part of a global effort in reducing our carbon emissions and build sustainable cities for a carbon-neutral society.Examples of successful projects include the optimization of hydrogen fuelling stations using ejectors, the optimization of microchannel heat exchangers, the optimization of air recirculation for evaporators in air-source heat pumps, and more.

Industrial PhD position in collaboration with Thales Global Service (CIFRE)My thesis was about the development of compact and dynamic thermal models for the use of electronic boards. The compact and dynamic models are generated from high level detailed numerical simulations (CFD simulations) and with the use of Genetic Algorithms (GA).My different topics were:- Numerical simulations of heat transfer (conduction, convection and radiation)- Computational Fluid Dynamics (CFD) - Multi-Physics simulations (thermal, fluid, mechanical, electrical, magnetical)- Applied Mathematics (Heat conduction problems)- Mathematical optimization & predictions (Genetic algorithms, )- DATA analysis- Presentation of work during international conferences (ITHERM, THERMINIC, ...)

Water hammer effect on Coriolis flowmeter: Pressure wave propagationThe aim of this study was to investigate the influence of a fast closing valve located downstream of a pipeline which includes a flowmeter (Coriolis from Siemens). The closing of a valve forces the flow to change its energy form (kinetic to elastic) as well as for the pipe's structure. This effect is called the water hammer effect and may lead to miscalculation of the flow rate by the Coriolis flowmeter. The different topics of the study were:- Mathematical modeling of vibration into a non linear tube- CFD simulations using Ansys CFX: steady and transient simulations- Test benchmarking

FEM (finite element method) analysis using Abaqus of an electrical actuator for an aircraft flap’s retractable system. - Estimation of the deformation of the actuator's outer crown (Abaqus) under maximum load- Variation of the crown's thickness

Study of the sloshing phenomena of the liquid propellant occurring in the fourth stage tank's of the VEGA launcher.The goal of the study was to investigate the induced forces applied on the tank's wall of the rocket fourth's stage in order to characterize the possible launcher's trajectory variations. The non integration of such parasite movements (sloshing of the fluid inside the tank) may lead to a miscalculation of the rocket's trajectory and at the end its self-destruction.The different topics of the internship were:- Mathematical modeling of vibrations- CFD simulations using Fluent: steady and transient simulations- Comparison with experimental data