TY - GEN
T1 - Time-domain nonlinear finite element analysis of air breakdown using a simplified plasma model
AU - Yan, Su
AU - Jin, Jianming
PY - 2015/10/22
Y1 - 2015/10/22
N2 - In this paper, the time-domain finite element method (TDFEM) is employed to analyze the high power breakdown in air. During the breakdown process, the motion of free electrons generates plasma currents, which produce secondary fields that couple back into the externally applied fields and interact with the free electrons. Such a breakdown process can be described by a coupled electromagnetic-plasma system, where the electromagnetic fields are governed by Maxwell's equations and the plasma current is modeled by a simplified plasma fluid equation. Due to the nonlinear characteristics of the breakdown phenomenon, the coupled system results in a nonlinear second-order partial differential equation that is solved by TDFEM together with the Newton-Raphson method. A numerical example is given to demonstrate the nonlinear characteristics of the breakdown phenomenon and the self-sustaining property of the plasma current.
AB - In this paper, the time-domain finite element method (TDFEM) is employed to analyze the high power breakdown in air. During the breakdown process, the motion of free electrons generates plasma currents, which produce secondary fields that couple back into the externally applied fields and interact with the free electrons. Such a breakdown process can be described by a coupled electromagnetic-plasma system, where the electromagnetic fields are governed by Maxwell's equations and the plasma current is modeled by a simplified plasma fluid equation. Due to the nonlinear characteristics of the breakdown phenomenon, the coupled system results in a nonlinear second-order partial differential equation that is solved by TDFEM together with the Newton-Raphson method. A numerical example is given to demonstrate the nonlinear characteristics of the breakdown phenomenon and the self-sustaining property of the plasma current.
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U2 - 10.1109/APS.2015.7305301
DO - 10.1109/APS.2015.7305301
M3 - Conference contribution
AN - SCOPUS:84953718210
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 1824
EP - 1825
BT - 2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Antennas and Propagation Society International Symposium, APS 2015
Y2 - 19 July 2015 through 24 July 2015
ER -