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在大气电场放电的过程中,建筑物以及尖端对大气电场的畸变起着重要的作用,实际生活中,很难保证建筑物为良导体,即建筑物与大地之间并非为一个电势为零的整体,它相对于大地有一个非零的电势。为了更加真实的研究建筑物对大气电场畸变的影响,采用有限元仿真软件ANSYS对不同相对介电常数建筑物对大气电场畸变情况进行仿真,分析得到以下结论:当建筑物的相对介电常数与建筑物周围大气不同时,建筑物内部的电势不为零,电位线穿过建筑物;建筑物顶部大气电场与相对介电常数呈现先增加后无限趋于常数。
In the process of atmospheric electric field discharge, the building and the tip play an important role in the distortion of the electric field in the atmosphere. In real life, it is difficult to ensure that the building is a good conductor, that is, the electric potential is not zero between the building and the earth Overall, it has a non-zero potential relative to the earth. In order to study the influence of buildings on the electric field distortion more realistically, finite element simulation software ANSYS is used to simulate the atmospheric electric field distortion of different relative permittivity buildings. The conclusions are as follows: When the relative dielectric constant of buildings and When the atmosphere around the building is different, the potential inside the building is not zero, and the potential line passes through the building. The electric field and relative permittivity at the top of the building increase first and then become infinitely constant.