| 区域海拔高度对云地雷闪闪击距离影响的数值研究 |
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| 引用本文： | 苟学强,张义军.区域海拔高度对云地雷闪闪击距离影响的数值研究[J].中国电机工程学报,2004,24(2):88-91. |
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| 作者姓名： | 苟学强 张义军 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所,甘肃,兰州,730000 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程项目 |
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| 摘 要： | 主要基于实验室放电通道传输的基本机制,建立了一个闪电通道发展的数值模式,对区域的海拔高度对去地雷闪闪击距离的影响进行了模拟研究,结果表明,随着地面海拔高度的升高,由于地面电场的增强以及连接先导始发门限的降低,闪击距离将显著增大--在海拔高度由0增加到3km时,闪击距离增大约230m,增幅约150%.
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| 关 键 词： | 高电压技术 区域海拔高度 去地雷闪 闪击距离 |
| 文章编号： | 0258-8013(2004)02-0088-04 |
| 修稿时间： | 2003年7月25日 |
NUMERICAL STUDY ON EFFECT OF THE REGION'S ALTITUDE ABOVE THE SEA LEVEL TO THE STRIKING DISTANCE OF THE C-G LIGHTNING DISCHARGE |
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| GOU Xue-qiang,ZHANG Yi-jun.NUMERICAL STUDY ON EFFECT OF THE REGION''''S ALTITUDE ABOVE THE SEA LEVEL TO THE STRIKING DISTANCE OF THE C-G LIGHTNING DISCHARGE[J].Proceedings of the CSEE,2004,24(2):88-91. |
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| Authors: | GOU Xue-qiang ZHANG Yi-jun |
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| Abstract: | Based on the basic mechanism of the leader initiation and propagation in long air gaps discharge, a model of the lightning channel development was proposed and the effect of the altitude above the sea level ( asl) of region to the striking distance in cloud-to-ground lightning discharge was numerically investigated, the result shows that the striking distance increases significantly with altitude of the region-increasing about 230m(150 percent)with 0 to 3km altitude variation, the main reason for which is due to the enhancement of the electrical field of the ground, and the lower pressure which reduces the critical electrical field. |
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| Keywords: | High-voltage technology Altitude above the sea level Cloud-to-ground lightning The striking distance |
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