PhD defense: Charlélie LAURENT – Low-Order Modeling and High-Fidelity Simulations for the Prediction of Combustion Instabilities in Liquid-Rocket Engines and Gas Turbines
Friday 19 June 2020 at 10h00
Phd Thesis Administration meeting room Cerfacs Toulouse (webex)
Abstract
The development of future rocket engine or gas turbine technologies, intended to respectively reduce the costs of access to Space and pollutants emissions, requires a thorough understanding of combustion instabilities in order to be able to predict and avoid them. This work explores several directions to meet these expectations. The first is the introduction of a new class of low-order numerical methods, which allows the resolution of thermoacoustic modes in complex combustion chambers. These emerging numerical methods gave birth to STORM, a software package intended to assist aeronautical industry engineers during the design of new engines. The second direction followed is the study of the flame dynamics characteristic of liquid-rocket engines. These high-fidelity simulations revealed the mechanisms governing the oscillations
of such a flame during its interaction with a combustion instability.
Jury
Prof. M. Juniper University of Cambridge referee
Prof. W. Polifke Technische Universität München referee
Prof. A. Morgans Imperial College London member
Prof. N. Noiray ETH Zürich member
Dr. T. Schmitt Laboratoire EM2C member
Prof. F. Nicoud Université de Montpellier member
Dr. T. Poinsot IMFT Toulouse CNRS advisor
