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Vasilyak, L. M.; Vereshchagin, I. P.; Glazkov, V. V.; Kononov, I G; Орлов, А. В.; Polyakov, D. N.; Sinkevich, O. A.; Sokolova, M. V.; Temnikov, A. G.; Firsov, K N

doi:10.1023/a:1023313331569

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…The concept of creating charged aerosol particles in order to model a lightning discharge in laboratory was proposed in the 1960s (Barreto, 1969). The setup used in this work is based on a condensing steam generator (Temnikov et al, 2009;Vasilyak et al, 2003). Its outdoor version was described in Kostinskiy et al, 2016).…”

Section: Experimental Setup and Measurement Techniquesmentioning

confidence: 99%

Nanosecond Electromagnetic Pulses Generated by Electric Discharges: Observation With Clouds of Charged Water Droplets and Implications for Lightning

Gushchin

Korobkov

Zudin

et al. 2021

Geophysical Research Letters

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Effects of lightning‐induced generation of high‐frequency and microwave radiation are of great interest for studying fundamental physics of lightning and its applications for monitoring of the thunderstorm activity and protection of equipment against electromagnetic interference. Ultrawideband electromagnetic pulses (UWB EMPs) of spark discharges about 1 m long were detected in a frequency band of up to 10 GHz in laboratory experiments using a cloud of water droplets charged up to the electric potential exceeding 1 MV. Electromagnetic pulses with characteristic front buildup durations from 50 to 100 ps were produced by streamer flashes, at the stage of leader propagation and the main stage of the discharge (i.e., the return stroke). Electric and magnetic fields of pulses were measured, and the radiation polarization was determined. The UWB EMP waveforms and the spectra obtained experimentally are consistent with colliding streamer models.

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Section: Experimental Setup and Measurement Techniquesmentioning

confidence: 99%

Nanosecond Electromagnetic Pulses Generated by Electric Discharges: Observation With Clouds of Charged Water Droplets and Implications for Lightning

Gushchin

Korobkov

Zudin

et al. 2021

Geophysical Research Letters

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“…The charged aerosol generator maintained an outlet current in a broad diapason from 10 µA to 150 µA. As a result of variations in the generator's outlet current, the charge of an individual artificial thunder cell could be regulated in a broad value diapason, reaching Experimental measurement complex "Thunderstorm" was created at the Department of Electrophysics and High Voltage Technique (National Research University "Moscow Power Engineering Institute") with the purpose of physical modeling and exploration of fundamental and practical problems in the fields of atmospheric electricity, lightning physics, and lightning protection of both grounded and flying objects [17][18][19][20][21]. It allows creating artificial clouds from a highly charged water aerosol with the maximal density of the volume charge (the artificial thunderstorm cells), which are equal to the electrically charged thunderclouds.…”

Section: Experimental Complex and Experiments Schemesmentioning

confidence: 99%

Artificial Negative Polarity Thunderstorm Cell Modeling of Nearby Incomplete Upward Discharges’ Influence on Elements of Monitoring Systems for Air Transmission Lines

et al. 2021

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The article represents results of a physical simulation of incomplete upward leader discharges induced on air transmission lines’ elements, using charged artificial thunderstorm cells of negative polarity. The influence of such discharges on closely located model sensors (both of rod and elongated types) of digital monitoring systems, as well as on the models of receiver-transmission systems of local data collection (antennas), was determined. Effect of heterogeneity of electromagnetic field caused by incomplete upward discharges on frequency specter of signals generated on sensors and antennas was estimated. Wavelet analysis was carried out to determine the basic frequency diapasons of such signals. Based on experimental data obtained, suppositions about the extent of influence of nearby incomplete leader discharges on the functioning of currently used systems of transmission lines’ monitoring were made.

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“…Alternatively, the physical processes related to the generation of SHF radiation by a lightning discharge can be simulated in laboratory devices, which allow generating a high-voltage discharge in the form a long spark. The devices based on Marx generators (Cooray et al, 2009;March & Montanyà, 2010;Mareev et al, 2023;Parkevich et al, 2022;Syssoev et al, 2022) or aerosol clouds charged to a high potential (Barreto, 1969;Gushchin et al, 2021;Kostinskiy et al, 2015;Vasilyak et al, 2003) make it possible to obtain long spark discharges (up to several tens of meters) under controlled conditions. Such devices allow monitoring parameters of discharges and their electromagnetic radiation with time resolutions available due to the best modern hardware.…”

Section: Introductionmentioning

confidence: 99%

Subnanosecond Electromagnetic Pulse Generated by a Long Spark Discharge: Lightning Implication

Gushchin,

Zudin,

Vershinin

et al. 2024

Geophysical Research Letters

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The effects of generating pulsed radiation by a long spark discharge are important for the development of lightning models and applications related to lightning protection. In experiments with a Marx generator simulating a lightning discharge, we detected the radiation in the form of a single ultrawideband electromagnetic pulse (UWB EMP) about 200 ps in duration, and rising time about 100 ps. UWB EMP generation occurs during the breakdown of a “rod–rod” 4 m long gap. Pulses of almost unipolar shape are observed in more than half of all positive discharges. EMP emission occurs before the main stage, and corresponds to the start of the upward leader from a grounded electrode. In negative discharges, pulses are also observed, but less frequently and with a smaller amplitude. The UWB EMPs, given their large amplitude (more than 100 V/m at a distance of 90 m from the discharge), can be considered as possible new lightning damage factors.

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Cited by 9 publications

References 2 publications

Nanosecond Electromagnetic Pulses Generated by Electric Discharges: Observation With Clouds of Charged Water Droplets and Implications for Lightning

Nanosecond Electromagnetic Pulses Generated by Electric Discharges: Observation With Clouds of Charged Water Droplets and Implications for Lightning

Artificial Negative Polarity Thunderstorm Cell Modeling of Nearby Incomplete Upward Discharges’ Influence on Elements of Monitoring Systems for Air Transmission Lines

Subnanosecond Electromagnetic Pulse Generated by a Long Spark Discharge: Lightning Implication

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