摘要
基于BG,TL,MTLL,MTLE和TCS5种模型,研究了雷电回击通道高度、回击速度和大地电容率对雷电回击电磁场的影响。计算中5种模型采用相同的通道基电流波形,通过计算总结了几种参数对回击电磁场的影响。
In this paper, the effects of the height of channel, the return stroke speed and the permittivity of ground on the return stroke radiation field are discussed based on TL, MTLL, MTLE, TCS and BG model. Assuming a common current wave shape at the channel base, the electromagnetic field have been calculated under different conditions. The calculating results show that the height of channel doesn't affect the field before the current gets to the channel end. The initial peak of electromagnetic field increases with increasing return stroke speed, same as the high frequency component of electromagnetic field at close range. The permittivity of ground affects the initial peak and the wave tilt of fields.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2003年第6期599-603,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金资助课题(50077024)
国家自然科学基金重点资助课题(50237340)
