基于圆盘模型研究雷暴云电荷在地面产生的静电场  

Study of the Ground Electric Field During Thunderstorms Based on Disc Model

作　　者：张怡远 常婉竹 景浩 王钰玺 张继鑫 黄代绘[1] 周勋秀[1] ZHANG Yiyuan;CHANG Wanzhu;JING Hao;WANG Yuxi;ZHANG Jixin;HUANG Daihui;ZHOU Xunxiu(School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 611756,Sichuan;School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,Sichuan;School of Computing and Artificial Intelligence,Southwest Jiaotong University,Chengdu 611756,Sichuan)

机构地区：[1]西南交通大学物理科学与技术学院,四川成都611756 [2]西南交通大学信息科学与技术学院,四川成都611756 [3]西南交通大学计算机与人工智能学院,四川成都611756

出　　处：《四川师范大学学报（自然科学版）》2023年第4期540-546,共7页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金(U2031101和11475141)。

摘　　要：基于圆盘模型,采用镜像法研究雷暴云电荷在地面产生的静电场,并通过数值模拟和理论计算获得圆盘模型向点电荷模型和无限大平板模型的过渡条件:当圆盘中心至观测点距离r与圆盘半径R_(0)的关系满足r≥4R_(0)时,可视为点电荷模型;当r≤√π/40R_(0)时,圆盘模型过渡到无限大带电平板模型.On the base of a disc model for the charge distribution in thunderclouds,the ground electric field is calculated by the image method.Through numerical simulation and theoretical calculation,the transition conditions from the disc model to some ideal models are obtained.When the distance from the disc center to the observation point(signed as r)and the disc radius(signed as R_(0))satisfy the function of r≥4R_(0),the charge of the disc can be regarded as a point charge.However,when r≤√π/40R_(0),the charged disc can be treated as an infinitely charged plate.

关 键 词：雷暴云电荷 圆盘模型 镜像法 电场强度 

分 类 号：P427.321[天文地球—大气科学及气象学]