轴对称建筑物形状对电场畸变影响的数值模拟  

Numerical simulation of effects of shape of axial symmetry buildings on electric field distortion

作　　者：谭涌波[1,2] 张冬冬[1,2] 郭秀峰[1,2] 周博文[1,2] 杨忆[1,2] 

机构地区：[1]气象灾害预报预警与评估协同创新中心,南京信息工程大学,江苏南京210044 [2]中国气象局气溶胶与云降水重点开放实验室,南京信息工程大学,江苏南京210044

出　　处：《电波科学学报》2014年第6期1219-1224,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金(批准号:41175003,41075003);公益性行业(气象)科研专项项目(编号:GYHY201006005);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：为了研究建筑物形状对大气电场畸变的影响,利用有限元法,计算得出不同形状建筑物周围的电位分布,进而讨论建筑物直径、弯曲度以及高度对大气电场畸变的影响.结果发现:建筑物顶端中心的电场畸变系数β随建筑物直径的增大而减小,且畸变系数与建筑物直径的关系式和建筑物弯曲度有一定的关系;电场畸变系数β随建筑物弯曲度的增大而减小,且最终趋于不变;电场畸变系数β随建筑物高度增加而增加,且建筑物的弯曲度不同,β随建筑物高度变化的趋势也不尽相同.对于具体的雷电防护设计,能够提供一些依据.This paper uses the finite element method to calculate the potential distribu- tion around the building in different shapes to study the influence of the shape of build- ings to atmospheric electric field distortion, and to further discuss the influence of width, degree of bending, height to atmospheric electric field distortion. The result shows that β （maximum distort coefficient of electric field） is decreasing with the in- crease of width, and the equation between β and width has certain relations with degree of bending, β is logarithmically decreasing with the increase of the degree of bending, and finally become constant. β is increasing with the increase of height, and the tende-ncy is different under distinct degree of bending. It can provide some basis for the design of lightning protection.

关 键 词：电场畸变 建筑物形状 弯曲度 数值模拟 

分 类 号：TM152[电气工程—电工理论与新技术] TM865