电子学报2017，Vol.45Issue(1)：246-250,5.DOI:10.3969/j.issn.0372-2112.2017.01.034
弯曲通道长度及倾斜角度对雷电电磁场影响研究
The Influence of Tortuous Channel Length and Tilt Angle on Lightning Electromagnetic Field
摘要
Abstract
The equations of tortuous channel LEMP (lightning electromagnetic pulse) fields are derived by decomposing the micro dipole into the perpendicular component and the horizontal component.Then the electromagnetic fields on earth surface at different bottom discharge channel length and different upper part discharge channel tilt angle are calculated.The results show that the peak-value of LEMP mainly depends on the length of bottom discharge channel,in middle and far ranges with the increase of the bottom discharge channel length,the amplitude of corresponding electromagnetic field will be smaller.The tilt angle of upper part discharge channel has little impact on LEMP in near ranges,and the amplitude of electromagnetic field in intermediate area and far area will decrease with the increase of tilt angle.Moreover,the impact of tilt angle on electromagnetic field amplitude will be greater with the increase of the distance.关键词
雷电电磁场/弯曲放电通道/地表电磁场/脉冲函数Key words
lightning electromagnetic field/tortuous discharge channel/surface electromagnetic field/pulse function分类
天文与地球科学引用本文复制引用
王晓嘉,陈亚洲,万浩江,王浩..弯曲通道长度及倾斜角度对雷电电磁场影响研究[J].电子学报,2017,45(1):246-250,5.基金项目
国家自然科学基金面上项目(No.51377171) （No.51377171）
