TY - GEN
T1 - 2d modeling of plasma-assisted h2/air ignition in a nanosecond discharge with detailed chemistry
AU - Mao, Xingqian
AU - Zhong, Hongtao
AU - Ju, Yiguang
N1 - Publisher Copyright:
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2021
Y1 - 2021
N2 - This work studied the ignition enhancement and ignition kernel development of H2/air mixtures in a nanosecond discharge between two cylindrical electrodes at atmospheric pressure and an initial temperature of 1000 K. A two-dimensional multi-scale adaptive reduced chemistry solver for plasma assisted combustion (MARCS-PAC) with detailed combustion chemistry and transport properties was developed and validated by incorporating the plasma solver PASSKEy and the unsteady reactive flow solver ASURF+. The results show that the streamer propagates between the two electrodes and creates chemically active excited species as well as radicals together with fast gas heating. The plasma-generated active species and gas heating significantly enhance low temperature ignition. In addition, the electrode separation distance also affects the ignition kernel development. This work provides an important tool to understand kinetic enhancement of non-equilibrium plasma ignition and optimize ignitor design.
AB - This work studied the ignition enhancement and ignition kernel development of H2/air mixtures in a nanosecond discharge between two cylindrical electrodes at atmospheric pressure and an initial temperature of 1000 K. A two-dimensional multi-scale adaptive reduced chemistry solver for plasma assisted combustion (MARCS-PAC) with detailed combustion chemistry and transport properties was developed and validated by incorporating the plasma solver PASSKEy and the unsteady reactive flow solver ASURF+. The results show that the streamer propagates between the two electrodes and creates chemically active excited species as well as radicals together with fast gas heating. The plasma-generated active species and gas heating significantly enhance low temperature ignition. In addition, the electrode separation distance also affects the ignition kernel development. This work provides an important tool to understand kinetic enhancement of non-equilibrium plasma ignition and optimize ignitor design.
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M3 - Conference contribution
AN - SCOPUS:85099925815
SN - 9781624106095
T3 - AIAA Scitech 2021 Forum
SP - 1
EP - 6
BT - AIAA Scitech 2021 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
Y2 - 11 January 2021 through 15 January 2021
ER -