H2 combustion

3AF Conference by Paul Palies

This seminar presents recent results obtained in gaseouscombustion hydrogen-air at the laboratoryscale (1 atm, 295 K). The experimentaldemonstrations and the theory developed, based on decomposition static-dynamics of flows (Static Dynamic-Flow Decomposition), guiding the experiments are discussed. This research is resituated in the context of futureaeronautical propulsion taking into account a realisticoperating point .A method, enabling scaling in terms of flamestabilization between the laboratory and this operating point, is introduced. On theother hand, the seminar discusses briefly transport processes for the study of flamemixing and in order toreduce fuel burn in the context of SD-FD

Figure 1: Swirled flame stabilization map at complete premix.
Palies P, Premchand CP. Hydrogen-airlean premixed turbulent highly swirled flamestabilisation: experimental demonstration and mechanistic-kinematicdescription. TheAeronauticalJournal. 2025.

Biography: Paul Palies is a French-Americanengineer and scientist. He is Associate Professor at theUniversity of Tennessee, Space Institute and Foundry Director of the Center for Combustion and Propulsion Research for Aviation (C-PARC), his research group. He graduated from the University of Paris XI in mechanics-physics(Licence 2005, maitrise 2006) and from Ecole Centrale Paris in Aeronautics and Energy in 2007 (Master 2 Recherche). He holds a PhD in combustion from Ecole Centrale Paris (2010). His research focuses on reactivefluid mechanics, with specializations in aeronautical propulsion, hydrogen, combustion dynamics and premixed flames.