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Applied Sciences
Special Issues
Physics Principles, Measurements and Characteristics of Lightning
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Physics Principles, Measurements and Characteristics of Lightning

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (20 December 2022) | Viewed by 3105

Special Issue Editors

Dr. Massimo Brignone

E-Mail Website
Guest Editor
Naval, ICT and Electrical Engineering Department (DITEN), University of Genoa, 16145 Genoa, Italy
Interests: electromagnetic fields; lightning modelling; optimization; microgrid and renewables
Special Issues, Collections and Topics in MDPI journals
Dr. Daniele Mestriner

E-Mail Website
Guest Editor
Naval and Electrical Engineering Department, University of Genoa, 16145 Genoa, Italy
Interests: electrical engineering; lightning protection; lightning modelling; software engineering and computer communications (networks)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Lightning is one of the most dangerous natural phenomena and can cause severe damage to infrastructures and people. The complete protection of infrastructures, as well as the safety of people, are crucial from a social and economic point of view. In this framework, the first fundamental step is the accurate estimation and representation of lightning characteristics and of the associated electromagnetic fields.

The aim of this Special Issue is to investigate and discuss measurements of lightning activity in order to provide reliable and suitable input data for researchers who need to properly design a lightning protection system. 

Dr. Massimo Brignone
Dr. Daniele Mestriner
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • lightning
  • electromagnetic fields
  • experimental measurements
  • lightning occurrence
  • lightning hazard
  • lightning protection

Published Papers (2 papers)

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Research

11 pages, 1260 KiB  
Article
Attenuation of Lightning-Induced Effects on Overhead Distribution Systems in Urban Areas
by Daniele Mestriner, Flavia Marchesoni, Renato Procopio and Massimo Brignone
Appl. Sci. 2022, 12(15), 7632; https://0-doi-org.brum.beds.ac.uk/10.3390/app12157632 - 28 Jul 2022
Cited by 4 | Viewed by 902
Abstract
Overhead distribution systems can be strongly affected and damaged by indirect lightning. The induced voltages are usually computed neglecting the surrounding geometry and the presence of buildings in urban areas. Buildings can strongly change the behavior of the measured lighting-induced electromagnetic (EM) fields [...] Read more.
Overhead distribution systems can be strongly affected and damaged by indirect lightning. The induced voltages are usually computed neglecting the surrounding geometry and the presence of buildings in urban areas. Buildings can strongly change the behavior of the measured lighting-induced electromagnetic (EM) fields in the proximity of the point of impact. As a consequence, induced voltages can deviate from what would be measured in the absence of buildings. This work proposes an analysis of the main variables, which affect the deviation of the EM fields and of the consequent induced voltages along an overhead distribution line due to the presence of a building. Different distances between the line and the building and different building heights are considered. Full article
(This article belongs to the Special Issue Physics Principles, Measurements and Characteristics of Lightning)
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13 pages, 2977 KiB  
Article
Energetic Radiation from Subsequent-Stroke Leaders: The Role of Reduced Air Density in Decayed Lightning Channels
by Istvan Kereszy, Vladimir Rakov, Levente Czumbil, Alexandru Muresan, Ziqin Ding, Dan Micu and Vernon Cooray
Appl. Sci. 2022, 12(15), 7520; https://0-doi-org.brum.beds.ac.uk/10.3390/app12157520 - 26 Jul 2022
Cited by 1 | Viewed by 1636
Abstract
Leaders of subsequent strokes in negative cloud-to-ground lightning are known to produce X-ray/gamma-ray emissions detectable at distances of a few kilometers or less from the lightning channel. These leaders usually develop in decayed but still warm channels of preceding strokes. We computed electric [...] Read more.
Leaders of subsequent strokes in negative cloud-to-ground lightning are known to produce X-ray/gamma-ray emissions detectable at distances of a few kilometers or less from the lightning channel. These leaders usually develop in decayed but still warm channels of preceding strokes. We computed electric field waveforms at different points along the path of subsequent leader as those points are traversed by the leader tip. For a typical subsequent leader, the electric field peak is a few MV/m, which is sufficient for production of energetic radiation in a warm (reduced air density) channel. We examined the dependence of electric field peak on the leader model input parameters, including the prospective return-stroke peak current (a proxy for the leader tip potential) and leader propagation speed, and compared model predictions with measurements. Full article
(This article belongs to the Special Issue Physics Principles, Measurements and Characteristics of Lightning)
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