Novel model for the simulation of lightning stepped leader

Kumar, Udaya and Nagabhushana, GR (2000) Novel model for the simulation of lightning stepped leader. In: IEE Proceedings of Science, Measurement and Technology, 147 (2). 56 -63.

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Abstract

The stepped leader forms the first phase of the first stroke in any lightning flash. It is basically a stepwise elongating discharge in air, which carries significant charge. The charge distribution on the leader and its velocity of descent, determine the attractive radius in shielding efficiency calculations. Also, the conductivity and the charge distribution on the leader tip region govern the initial stages of the return stroke. Therefore, there is a need for determining these parameters accurately. In this regard, a self-consistent model for the stepped leader will be very useful. The authors present a new model for the stepped leader that does not assume basic quantities like leader charge, current and velocity, but derives them from the computer simulation.

Item Type:	Journal Article
Publication:	IEE Proceedings of Science, Measurement and Technology
Publisher:	IEE
Additional Information:	Copyright of this article belongs to Institution of Electrical Engineers (IEE)
Department/Centre:	Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited:	02 Sep 2005
Last Modified:	19 Sep 2010 04:19
URI:	http://eprints.iisc.ac.in/id/eprint/3592

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