Nanosecond pulsed discharges have attracted the attention of engine manufacturers due to the possibility of attaining distributed ignition sites that accelerate burn rates while resulting in very little electrode erosion. Multidimensional modeling tools currently capture the electrical structure of such discharges accurately, but resolving the chemical structure remains a challenging problem owing to the disparity of time-scales in streamer propagation (nanoseconds) and ignition phenomena (microseconds). The purpose of this study is to extend multidimensional results towards resolving the chemical structure in the wake of streamers (or the afterglow) by using a batch reactor model. This can afford the use of very detailed chemical kinetic information. The full non-equilibrium nature of the electrons is taken into account, along with fast gas heating, shock wave propagation, and thermal diffusion. The results shed light on ignition phenomena brought about by such discharges.
|Original language||English (US)|
|Title of host publication||ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019|
|Publisher||American Society of Mechanical Engineers (ASME)|
|State||Published - 2020|
|Event||ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019 - Chicago, United States|
Duration: Oct 20 2019 → Oct 23 2019
|Name||ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019|
|Conference||ASME 2019 Internal Combustion Engine Division Fall Technical Conference, ICEF 2019|
|Period||10/20/19 → 10/23/19|
Bibliographical noteFunding Information:
Argonne National Laboratory’s work was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of Vehicle Technology under contract DE-AC02-06CH11357.
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