TY - JOUR
T1 - Flames with plasmas
AU - Lacoste, Deanna
N1 - KAUST Repository Item: Exported on 2022-09-14
Acknowledgements: This paper is dedicated to Christophe O. Laux of CentraleSupelec and Jonas P. Moeck of NTNU, who both had an instrumental impact on my research in plasma-assisted combustion. Christophe first introduced me to non-equilibrium plasma physics in 2003. He had the greatest influence on my thinking about plasma-assisted combustion and about how to seek for simplicity in complex problems. I was fortunate to be one of the many young researchers who could learn from Christophe about spectroscopy and plasma physics, benefiting from his unshakeable positiveness and his passion for beautiful science. In 2011, I became friend with Jonas and we decided to study the impact of non-equilibrium plasma discharges on flame dynamics. Thanks to Jonas, a new aspect of combustion opened up to me, providing enough challenges and questions to keep me busy for the following decade. Jonas was and still is my reference for flame-acoustic coupling and thermoacoustic instabilities.
I would like to sincerely thank all the persons who, over these two decades, have worked with me in plasma-assisted combustion, with a special thank to Ammar Alkhalifa, Anne Bourdon, Min Suk Cha, Davide Del Cont-Bernard, Francesco Di Sabatino, Andreas Ehn, Joshua A. T. Gray, Thibault F. Guiberti, Sylvain Heitz, Guillaume Pilla, João Vargas, Yuan Xiong, and Da A. Xu.
I also would like to acknowledge the funding sources of the research presented in this paper: In France, the Centre National de la Rechereche Scientifique (CNRS), and the Agence Nationale de la Recherche (ANR), in Germany, the Deutsche Forschungsgemeinschaft (DFG), and in Saudi Arabia, the King Abdullah University of Science and Technology (KAUST).
PY - 2022/7/20
Y1 - 2022/7/20
N2 - Non-equilibrium plasma discharges can create a favorable environment for combustion processes, at low energy cost. “How favorable?” and “How low?” are two open questions that can be answered only by gaining a deep understanding of the coupling between flames and plasmas. This paper reviews recent progress in plasma-assisted combustion with a special focus on flame dynamics. First, different non-equilibrium plasma discharges are presented and their effects on flame properties are discussed. Then, an additional level of complexity is introduced by considering the effect of such plasmas on the coupling between flames and acoustic waves. While initial results suggested that the best plasma actuation would combine thermal and chemical effects, a shift towards favoring a chemical impact is emerging. Reasons for this shift are explained and future research directions are finally proposed.
AB - Non-equilibrium plasma discharges can create a favorable environment for combustion processes, at low energy cost. “How favorable?” and “How low?” are two open questions that can be answered only by gaining a deep understanding of the coupling between flames and plasmas. This paper reviews recent progress in plasma-assisted combustion with a special focus on flame dynamics. First, different non-equilibrium plasma discharges are presented and their effects on flame properties are discussed. Then, an additional level of complexity is introduced by considering the effect of such plasmas on the coupling between flames and acoustic waves. While initial results suggested that the best plasma actuation would combine thermal and chemical effects, a shift towards favoring a chemical impact is emerging. Reasons for this shift are explained and future research directions are finally proposed.
UR - http://hdl.handle.net/10754/679851
UR - https://linkinghub.elsevier.com/retrieve/pii/S1540748922000323
U2 - 10.1016/j.proci.2022.06.025
DO - 10.1016/j.proci.2022.06.025
M3 - Article
SN - 1540-7489
JO - Proceedings of the Combustion Institute
JF - Proceedings of the Combustion Institute
ER -