Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Xiangen Zhao"'
Autor:
Changzhi Peng, Zhijun Li, Xuekai Pei, Xiangen Zhao, Gaopeng Lu, Feifan Liu, Yongping Wang, Baoyou Zhu, Yu Zheng, Xuzhu Dong
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 11, Pp n/a-n/a (2024)
Abstract Positive leaders branch less frequently than negative counterpart, and the physical processes and properties of positive leader branching remain a mystery. We investigated 10 m laboratory discharges under four positive voltages using a high
Externí odkaz:
https://doaj.org/article/20a855a6538c46c89c5a866659154986
Publikováno v:
High Voltage, Vol 8, Iss 1, Pp 111-118 (2023)
Abstract There are multiple corona bursts before leader inception when the rising rate of the applied voltage or electric field is not sufficiently high enough in long positive sparks. In existing studies, no attention has been paid to whether these
Externí odkaz:
https://doaj.org/article/b823d424618d44a691d6a75e3ce5d698
Autor:
Junjia He, Xiankang Wang, Xiangen Zhao, Juhyeong Lee, Yaping Du, Xiaopeng Liu, Quan Gan, Yang Liu, Yuqin Liao
Publikováno v:
High Voltage, Vol 7, Iss 5, Pp 825-839 (2022)
Abstract Understanding the mechanism of positive leader discharge is important in lightning protection engineering and the external insulation design in high voltage power transmission systems. During the propagation of a positive leader, some proces
Externí odkaz:
https://doaj.org/article/39d4eb271ed645fb9566ea70a962d2c5
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 12, Pp n/a-n/a (2023)
Abstract To study the mechanism of space stem formation, the high‐speed direct imaging technique and Schlieren photography are used to simultaneously observe the space stems in a 1.35‐m air gap under the lightning impulse voltage. It is found tha
Externí odkaz:
https://doaj.org/article/4bc2f2f6fe4847949443c6cc05e4526c
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract The elongation and branching of long positive spark discharges in the laboratory and in lightning have been attributed to the formation of thermalized channels inside a diffuse, glow-like streamer section at the leader head. It is experiment
Externí odkaz:
https://doaj.org/article/a95ed70047234d04a51e1dcdc3db20f9
Publikováno v:
IEEE Access, Vol 7, Pp 111396-111410 (2019)
The observation of the air gap discharge process is the basis of revealing the physical mechanism of gas discharge and establishing the accurate numerical simulation model. In order to obtain the variation characteristics at different development sta
Externí odkaz:
https://doaj.org/article/e6a574bd6a59458093d89501d657869c
Publikováno v:
AIP Advances, Vol 11, Iss 5, Pp 055303-055303-8 (2021)
Characteristics of the streamer stem are essential for the study on the stable leader inception. Experiments are conducted to observe the re-illumination of streamer stems under either rising or non-changing positive electric fields in long air gaps,
Externí odkaz:
https://doaj.org/article/b0636111381c4e658385c144f702c633
Autor:
Jinxin Cao, Yaping Du, Yuxuan Ding, Ruihan Qi, Mingli Chen, Zhe Li, Xiangen Zhao, Amedeo Andreotti
Publikováno v:
IEEE Transactions on Power Delivery. 38:409-419
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ac7043bb33e27698f817f772ab33231
https://doi.org/10.1109/tpwrd.2022.3192482
https://doi.org/10.1109/tpwrd.2022.3192482
Publikováno v:
Mechanical and Aerospace Engineering Faculty Publications
There are multiple corona bursts before leader inception when the rising rate of the applied voltage or electric field is not sufficiently high enough in long positive sparks. In existing studies, no attention has been paid to whether these corona bu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fb40c751bf336c2c67da3ea2a20d1df
https://doi.org/10.1049/hve2.12255
https://doi.org/10.1049/hve2.12255
Publikováno v:
Journal of Geophysical Research: Atmospheres. 128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8246cf94788c62266e3b8494e471e5ac
https://doi.org/10.1029/2023jd038732
https://doi.org/10.1029/2023jd038732