Двумерная модель нестационарного коронного разряда от периодической плоскопараллельной системы заземленных проводов в электрическом поле грозового облака


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2D computer model of a non-stationary corona from an infinite grating composed of parallel grounded wires in a thundercloud electric field

This paper deals with a non-stationary corona developing in free space from a plane-parallel infinite periodic system of grounded wires suspended at the same height in a growing uniform thundercloud electric field. The discharge is described by the continuity equation for positive ions and electrostatic equation for the electric field induced by wire charges and ion space charge. These equations were solved using a two-dimensional computer program, which was developed in this study and then used to calculate the corona current, the distribution of the space charge generated by the corona, and the potential distribution in space surrounding the wires. The obtained characteristics of the corona may be of interest for the purpose of increasing the reliability of lightning protection wires.

corona discharge, numerical simulation, atmospheric electricity

DOI: http://doi.org/10.33257/PhChGD.21.2.920


Том 21, выпуск 2, 2020 год



Рассмотрен теоретически нестационарный коронный разряд, развивающийся в свобод-ном пространстве от плоскопараллельной бесконечной периодической системы заземленных проводов, подвешенных на одинаковой высоте и находящихся в нарастающем однородном электрическом поле грозового облака. Разряд описывается системой уравнений для плотности положительных ионов и уравнением Пуассона для электрического поля. Для решения этих уравнений разработана двумерная компьютерная программа, на основе которой рассчитаны коронный ток, распределения объемного заряда, генерируемого короной, и распределения потенциала в окружающем провода пространстве. Полученные характеристики короны могут представлять интерес для повышения надежности многотросовой молниезащиты заземленных объектов.

коронный разряд, численное моделирование, атмосферное электричество

DOI: http://doi.org/10.33257/PhChGD.21.2.920


Том 21, выпуск 2, 2020 год



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