[HTML][HTML] The role of preferential diffusion on the ignition dynamics of lean premixed hydrogen flames

T Yahou, N Detomaso, L Selle, T Poinsot… - Proceedings of the …, 2024 - Elsevier
Abstract High-fidelity Large-Eddy Simulations (LES) are used to study the ignition dynamics
of two fuel/air mixtures with distinct Lewis numbers L e, unveiling the impact of preferential …

Analysis of flame propagation mechanisms during light-round in an annular spray flame combustor: the impact of wall heat transfer and two-phase flow

K Töpperwien, S Puggelli, R Vicquelin - Combustion and Flame, 2022 - Elsevier
Ignition in annular multi-burner combustors is marked by a succession of four phases,
ending with a characteristic flame expansion from burner to burner, often referred to as light …

Experimental and LES investigation of ignition of a spinning combustion technology combustor under relevant operating conditions

J Crespo-Anadon, CJ Benito-Parejo, S Richard… - Combustion and …, 2022 - Elsevier
SAFRAN Helicopter Engines has developed the spinning combustion technology in which
the burnt gases from one injector travel tangentially along the combustor annulus towards …

LES–DFSD modelling of vented hydrogen explosions in a small-scale combustion chamber

M Elshimy, S Ibrahim, W Malalasekera - Journal of Loss Prevention in the …, 2021 - Elsevier
Accidental explosions are a plausible danger to the chemical process industries. In the
event of a gas explosion, any obstacles placed within the path of the flame generate …

Assessment of Large Eddy Simulation in the Conjugate Heat Transfer context for engine operability: application to Hydrogen enrichment and Spinning Combustion …

PW Agostinelli - 2022 - theses.hal.science
As society evolves towards a green economy to face climate change, the combustion
community is expected to develop new technologies and design low emission combustors …

Numerical analysis of relight in an annular spray-flame combustor with preheated walls

K Töpperwien, R Vicquelin - Proceedings of the Combustion Institute, 2023 - Elsevier
Successful relight of aero-engine combustors is subjected to certification specifications and
must be ensured under various scenarios which can involve substantially different …

[PDF][PDF] Deep Convolutional Neural Networks for Subgrid-Scale Flame Wrinkling Modeling

V Xing, CJ Lapeyre - Machine Learning and Its Application to …, 2023 - library.oapen.org
Subgrid-scale flame wrinkling is a key unclosed quantity for premixed turbulent combustion
models in large eddy simulations. Due to the geometrical and multi-scale nature of flame …

Large Eddy Simulation of Aircraft Engine Ignition under Relevant Operating Conditions and Application to the Spinning Combustion Technology

JC Anadon - 2023 - theses.hal.science
SAFRAN Helicopter Engines has recently developed the spinning combustion technology in
which the burnt gases from one injector travel tangentially along the combustor annulus …

Deep learning for subgrid-scale modeling in large eddy simulations of turbulent premixed combustion

V Xing - 2022 - theses.hal.science
In a century defined by climate change and data abundance, combustion is moving towards
new opportunities created by the digital revolution. Large eddy simulations (LES) of full …

[PDF][PDF] En vue de l'obtention du

Z XIONG - 2021 - researchgate.net
The topic regarding the development of 21st century teacher competence has long been
placed as one of the priorities in the global education agenda. Initial teacher education is the …