Effect of wind on the distribution of the corona discharge ionized field generated from grounded wire during thunderstorms

Zou, Yanhui; He, Junjia; He, Hengxin

doi:10.1109/iclp.2014.6973248

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…The effect of wind on corona discharge has been studied both experimentally and numerically by various authors [11][12][13][14][15]. D' Alessandro [12] measured the relationship between the peak value of corona current and the speed of wind, and Du et al [14] have measured and analyzed the variations in corona charge intensity and corona current under different wind conditions.…”

Section: Introductionmentioning

confidence: 99%

“…By using a 2D symmetrical model, Becerra [17] argued that the simulated results of Bazelyan et al [13] overestimated the influence of the corona discharge. Zou et al [15] have developed a 2D time-dependent model and found that the corona current increases almost linearly with the horizontal wind speed, but the effect of vertical wind on the corona current was not considered. Furthermore, in the observation of upward lightning in winter thunderstorm in Japan, self-initiated upward lightning always starts from the stationary tower under a larger wind speed [8], because the removal of space charge by wind may facilitate the initiation of an upward leader.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of Corona Discharge Model and Its Application on Simulating Corona Discharge in the Presence of Wind

Guo

Zhang

2017

Mathematical Problems in Engineering

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To evaluate the effect of wind on corona discharges occurring on the tip of a grounded rod during a negative charging process of thundercloud, a two-dimensional numerical model has been improved by considering the wind velocity as a driving force for the movement of the corona charges. It was found that not only wind speed but also wind direction have a significant effect on the distribution of corona charges, the local electric field around the rod, and the corona current. (1) Under the same wind speed, a larger horizontal wind can result in less accumulation of corona charges, a larger electric field, and a larger corona current. However, when the speed is less than 5 m s −1 , the effect of wind direction on the corona current was weak. (2) Under the same wind direction, a larger wind speed can cause a larger corona current. However, when the horizontal wind component is smaller than the vertical, the larger wind speed would cause a smaller electric field. Thus, it is necessary to take the effects of the wind direction into consideration, rather than to consider its speed only, when studying the corona discharge and its effects on the upward leader.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of Corona Discharge Model and Its Application on Simulating Corona Discharge in the Presence of Wind

Guo

Zhang

2017

Mathematical Problems in Engineering

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Analysis of corona discharge current trigger threshold for different shapes metal tips

Luo

Chu

et al. 2021

International Journal of Applied Electromagnetics and Mechanics

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Aiming at the problem of the corona discharge trigger electric filed threshold at different shapes of a metal tip, through the theoretical analysis of the electric field distribution near the surface of the conical tip and the ellipsoidal tip, and the laboratory simulation experiment, reached the following conclusion. The relationship between the value of corona current amplitude, the frequency and the tip’s radius of curvature is obtained; the corona discharge electric field threshold is relatively fixed and between 6.9382 kV/cm and 8.2824 kV/cm. The above relationship has a certain reference value in practical application and computer simulation.

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Effect of wind on the distribution of the corona discharge ionized field generated from grounded wire during thunderstorms

Cited by 2 publications

References 18 publications

Improvement of Corona Discharge Model and Its Application on Simulating Corona Discharge in the Presence of Wind

Improvement of Corona Discharge Model and Its Application on Simulating Corona Discharge in the Presence of Wind

Analysis of corona discharge current trigger threshold for different shapes metal tips

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