2D modeling of the electrode geometry effects on plasma-assisted H2/air ignition

Xingqian Mao, Hongtao Zhong, Yiguang Ju

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

Abstract

This work presents the results of two-dimensional modeling of the electrode geometry effects on H2/air ignition in a nanosecond plasma discharge. A new multi-scale adaptive reduced chemistry solver for plasma assisted combustion (MARCS-PAC) is applied to simulate the effects of electrode shape, diameter and gap size on ignition enhancement. The results show that a cylindrical electrode produces larger ignition kernel compared with spherical and parabolical electrodes by generating a larger discharge volume with active species and gas heating. There exists a non-monotonic dependence of ignition kernel volume on electrode diameter and gap size. This work provides insights to understand the effects of electrode geometry on the optimization of ignition enhancement in advanced engines.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum 2022
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624106316
DOIs
StatePublished - 2022
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 - San Diego, United States
Duration: Jan 3 2022Jan 7 2022

Publication series

NameAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022
Country/TerritoryUnited States
CitySan Diego
Period1/3/221/7/22

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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