Effect of Striking a Cone-Shaped Mountain Top on the Far Lightning-Radiated Electromagnetic Field
Effect of Striking a Cone-Shaped Mountain Top on the Far Lightning-Radiated Electromagnetic Field
复制标题
撞击圆锥形山顶对远距离雷电辐射电磁场的影响
DOI：
10.1109/temc.2018.2843772
复制
发表时间：
2019-08
影响因子：
2.1
通讯作者：
Jinbo Zhang
中科院分区：
文献类型：
--
作者：
Wenhao Hou;Qilin Zhang;Lei Wang;Jinbo Zhang
本文用柱坐标系下的二维时域有限差分法计算了距闪电通道0.3 ~ 50 km的圆锥形山顶的地面雷电辐射垂直电场和方位磁场。结果表明，无论是近距离观测还是远距离观测，山体高度和倾斜角度对雷电辐射电磁场都有显著影响。对于雷电辐射垂直电场，几公里以外的远场（主要是辐射场分量）的增强是由于山地地形与平地过渡区的反射过程，而山地地形附近近场（主要是准静电场分量）的减小是由于遮蔽效应，而不是由于这种反射。对于雷电辐射的方位磁场，不同的地形，包括山的高度和倾斜角度，场值增加近距离和远距离观测。
This paper presents the computed lightning-radiated vertical electric field and azimuthal magnetic field at the ground level at observing distances ranging from 0.3 to 50 km from the lightning channel for striking the cone-shaped mountain top, by using the two-dimensional finite-difference time-domain method in cylindrical coordinate systems. It is found that the mountain height and the inclination angle have a significant effect on the lightning-radiated electromagnetic field both for the close and far observing distances. For the lightning-radiated vertical electric field, the enhancement of the far field beyond several kilometers (mainly radiation field component) is due to the reflection process in the transition between the mountain terrain and the flat ground, but the reduction of close field near the mountain terrain (mainly quasi-electrostatic field component) is due to the shadowing effect, but not due to such reflection. For the lightning-radiated azimuthal magnetic field, the field values for different mountain terrains, including the mountain height and inclination angle, increase both for close and far observing distances.
登录
查看更多内容
DOI：
10.1109/iclp.2014.6973193
发表时间：
2014-12
期刊：
2014 International Conference on Lightning Protection (ICLP)
影响因子：
--
作者：
J. Paknahad;K. Sheshyekani;M. Hamzeh;F. Rachidi
通讯作者：
J. Paknahad;K. Sheshyekani;M. Hamzeh;F. Rachidi
DOI：
--
发表时间：
2007
期刊：
Journal of Lightning Research
影响因子：
--
作者：
F. Rachidi
通讯作者：
F. Rachidi
影响因子：
2.1
作者：
J. Bermudez;F. Rachidi;M. Rubinstein;W. Janischewskyj;V. Shostak;D. Pavanello;Jen Shih Chang;A. Hus
通讯作者：
J. Bermudez;F. Rachidi;M. Rubinstein;W. Janischewskyj;V. Shostak;D. Pavanello;Jen Shih Chang;A. Hus
影响因子：
4.4
作者：
H. Motoyama;W. Janischewskyj;A. Hussein;R. Rusan;W. Chisholm;J. Chang
通讯作者：
H. Motoyama;W. Janischewskyj;A. Hussein;R. Rusan;W. Chisholm;J. Chang
雷击电短路物体的远场电流关系的验证和修正
DOI：
10.1016/j.jastp.2014.08.015
发表时间：
2014-12
影响因子：
1.9
作者：
Zhang Qilin;Hou Wenhao;Ji Tongtong;He Lixia;Su Jianfeng
通讯作者：
Su Jianfeng