TY - GEN
T1 - Streamer Self-Focusing in External Longitudinal Magnetic Field
AU - Starikovskiy, Andrey Yu
AU - Shneider, Mikhail N.
AU - Aleksandrov, Nickolay L.
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/9/12
Y1 - 2021/9/12
N2 - Based on the results of numerical simulation of the development of a streamer discharge in CO 2 in a gap with an external longitudinal magnetic field, the possibility of self-focusing of such discharges is demonstrated. The self-focusing is caused by a sharp slowdown in the speed of the radial ionization wave due to a change in the EEDF, a decrease in the average electron energy, electron mobility, and the rate of electron impact ionization in the crossed electric and magnetic fields as compared with the case of the discharge development without magnetic field. Simultaneously with the deceleration of the radial ionization wave, the ionization wave accelerates along the axis of the discharge gap due to a decrease in the radius of the streamer head and an increase in the electric field on it. Since the electric and magnetic fields are parallel to each other on the axis of symmetry, for the longitudinal wave there is no decrease in the average electron energy and ionization rate with an increase in the magnetic field value.
AB - Based on the results of numerical simulation of the development of a streamer discharge in CO 2 in a gap with an external longitudinal magnetic field, the possibility of self-focusing of such discharges is demonstrated. The self-focusing is caused by a sharp slowdown in the speed of the radial ionization wave due to a change in the EEDF, a decrease in the average electron energy, electron mobility, and the rate of electron impact ionization in the crossed electric and magnetic fields as compared with the case of the discharge development without magnetic field. Simultaneously with the deceleration of the radial ionization wave, the ionization wave accelerates along the axis of the discharge gap due to a decrease in the radius of the streamer head and an increase in the electric field on it. Since the electric and magnetic fields are parallel to each other on the axis of symmetry, for the longitudinal wave there is no decrease in the average electron energy and ionization rate with an increase in the magnetic field value.
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U2 - 10.1109/ICOPS36761.2021.9588516
DO - 10.1109/ICOPS36761.2021.9588516
M3 - Conference contribution
AN - SCOPUS:85119621859
T3 - IEEE International Conference on Plasma Science
BT - 2021 IEEE International Conference on Plasma Science, ICOPS 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Conference on Plasma Science, ICOPS 2021
Y2 - 12 September 2021 through 16 September 2021
ER -