TY - GEN
T1 - Fractal analysis of positive streamer branching produced with field ionization in gaseous, liquid, and supercritical CO2
AU - Abbas, Muhammad Farasat
AU - Zhang, Xing
AU - Sun, An Bang
AU - Zhang, Guan Jun
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/5/28
Y1 - 2021/5/28
N2 - Field ionization is adopted as a streamer initiation mechanism in highly pressurized CO2, using a 3D particle model. The field ionization is implemented into the 3D model through Zener's model. Streamer evolution is classified into three stages; inception cloud formation, main streamer channels, and subsequent streamer branching independent of the medium state. The comparison of average electron density, electric field, and the length of streamer in three thermodynamic states of CO2 is presented. Box counting method is used to calculate the fractal value (D) for positive streamer pattern in gaseous, liquid, and supercritical (SC) CO2. The figures of streamer discharge obtained from the 3D simulation model are fractal with fractal dimension for gaseous, liquid phase, and SC- CO2 as 1.577, 1.578, and 1.587. The results of fractal analysis of positive streamer branching in this paper are consistent with the fractal values of streamer in the SC-CO2 through experiments in literature.
AB - Field ionization is adopted as a streamer initiation mechanism in highly pressurized CO2, using a 3D particle model. The field ionization is implemented into the 3D model through Zener's model. Streamer evolution is classified into three stages; inception cloud formation, main streamer channels, and subsequent streamer branching independent of the medium state. The comparison of average electron density, electric field, and the length of streamer in three thermodynamic states of CO2 is presented. Box counting method is used to calculate the fractal value (D) for positive streamer pattern in gaseous, liquid, and supercritical (SC) CO2. The figures of streamer discharge obtained from the 3D simulation model are fractal with fractal dimension for gaseous, liquid phase, and SC- CO2 as 1.577, 1.578, and 1.587. The results of fractal analysis of positive streamer branching in this paper are consistent with the fractal values of streamer in the SC-CO2 through experiments in literature.
KW - 3D PIC/MCC
KW - CO
KW - field ionization
KW - fractal analysis
KW - positive streamer
KW - supercritical
UR - https://www.scopus.com/pages/publications/85114200873
U2 - 10.1109/CIEEC50170.2021.9510711
DO - 10.1109/CIEEC50170.2021.9510711
M3 - 会议稿件
AN - SCOPUS:85114200873
T3 - Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021
BT - Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE China International Electrical and Energy Conference, CIEEC 2021
Y2 - 28 May 2021 through 30 May 2021
ER -