2d modeling of plasma-assisted h2/air ignition in a nanosecond discharge with detailed chemistry

Xingqian Mao, Hongtao Zhong, Yiguang Ju

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-6
Number of pages6
ISBN (Print)9781624106095
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: Jan 11 2021Jan 15 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period1/11/211/15/21

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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