气候变化领域集成服务门户(CCPortal): Corona Discharge in Wind for Electrically Isolated Electrodes

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DOI	10.1029/2020JD032908
	Corona Discharge in Wind for Electrically Isolated Electrodes
	Guerra-Garcia C.; Nguyen N.C.; Mouratidis T.; Martinez-Sanchez M.
发表日期	2020
ISSN	2169897X
卷号	125 期号:16
英文摘要	For various problems in atmospheric electricity it is necessary to understand the behavior of corona discharge in wind. Prior work considers grounded electrode systems, of relevance for earthed towers, trees, or windmills subjected to thunderstorms fields. In this configuration, the effect of wind is to remove the shielding ions from the coronating electrode vicinity strengthening the corona and increasing its current. There are a number of cases, such as isolated wind turbine blades or airborne vehicles, that are not completely represented by the available models and experiments. This paper focuses on electrode systems that are electrically isolated from their environment and reports on a wind tunnel campaign and accompanying theoretical work. In this configuration, there are two competing effects: the removal of the shielding ions by the wind, strengthening the corona; and the electrode system charging negatively (for positive corona) with respect to its environment, weakening the corona. This leads to three different operating regimes; namely, for positions that favor ion recapture, charging is limited and current increases with wind as in the classical scaling; for positions that favor ion transport by the wind, the system charges negatively and the current decreases with wind; for the later configuration, as wind increases, the current can vanish and the system potential saturates. The results from this work demonstrate that classical scaling laws of corona discharge in wind do not necessarily apply for isolated electrodes and illustrate the feasibility of using a glow corona in wind for controlled charging of a floating body. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	corona discharge; electric charging; floating electrodes; glow corona; isolated electrodes; wind
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185820
作者单位	Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Guerra-Garcia C.,Nguyen N.C.,Mouratidis T.,et al. Corona Discharge in Wind for Electrically Isolated Electrodes[J],2020,125(16).
APA	Guerra-Garcia C.,Nguyen N.C.,Mouratidis T.,&Martinez-Sanchez M..(2020).Corona Discharge in Wind for Electrically Isolated Electrodes.Journal of Geophysical Research: Atmospheres,125(16).
MLA	Guerra-Garcia C.,et al."Corona Discharge in Wind for Electrically Isolated Electrodes".Journal of Geophysical Research: Atmospheres 125.16(2020).