Title :
Influence of the geometry of the discharge channel in a model for the first return stroke
Author :
Pulgarín, Juan ; Younes, Camilo ; Vargas, Mauricio
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng, Nat. Univ. of Colombia, Manizales, Colombia
Abstract :
This paper examines the influence of the lightning channel geometry, and the variation of the linear charge density with height, in a model for the first return stroke. The tortuous geometry of the discharge channel is simulated by means of statistical characterizations of natural lightning reported in the literature. The linear charge density for a channel with a tortuous geometry is modeled by means of a regression analysis of simulated data. Finally, the results presented, show a comparison between the spatio-temporal distribution of currents along a straight and vertical channel with those of a tortuous channel with non-homogeneous linear charge density.
Keywords :
lightning; regression analysis; spatiotemporal phenomena; discharge channel; first return stroke model; lightning channel geometry; lightning currents; linear charge density variation; natural lightning; nonhomogeneous linear charge density; regression analysis; spatiotemporal distribution; statistical characterizations; straight channel; tortuous geometry; vertical channel; Lead; Tin; lightning; lightning channel geometry; linear charge density modeling; return stroke modeling;
Conference_Titel :
Lightning Protection (ICLP), 2012 International Conference on
Conference_Location :
Vienna
Print_ISBN :
978-1-4673-1898-3
Electronic_ISBN :
978-1-4673-1896-9
DOI :
10.1109/ICLP.2012.6344389
