Dynamics of the lightning channel using generalized traveling current source return stroke model
2013
Authors
Ignjatović, MilanCvetić, Jovan
Heidler, Fridolin
Marković, Slavoljub
Pavlović, Dragan
Đurić, Radivoje
Šumarac Pavlović, Dragana
Trifković, Zoran
Conference object (Published version)
Metadata
Show full item recordAbstract
Characteristics of the lightning channel corona
sheath surrounding a thin channel core are examined using the
generalized lightning traveling current source (GTCS) return
stroke model. The return stroke process is modeled with positive
charge coming from the channel core discharging negative leader
charge in the corona sheath. The corona sheath model that predicts
charge
motion
in the sheath is used to derive sheath radius
vs. time expressions during the return stroke. According to the
corona sheath model, previously pro-posed in [1] and [2], it consists
of
two
zones,
zone
1
(surrounding
the
channel
core
with
net
positive
charge) and zone 2 (surrounding zone 1 with negative
charge). We adopted the assumption of a constant electric field
inside zone 1 of the corona sheath observed in laboratory experimental
research
of
corona
discharges.
We
examined
the
influence
of
different magnitudes of the breakdown electric field at the
boundaries of bo...th zones on the dynamics of the return stroke.
The new channel discharge function, calculated from the close
electric field waveform measured at 15m from the channel [7], is
used. The calculations have shown that the maximum radii of
zones 1 and 2 significiaantly decrease compared to the previous
results given in [9]. Similar conclusion holds for the velocities of
zone 1 and 2 boundaries. It is concluded that the new channel
discharge function gives the results for the time dependence of
both the radii and their velocities in a good agreement with the
theoretical predictions.
Keywords:
electrostatic plasma confinement / lightning strokeSource:
11th International Conference on Applied Electromagnetics - ПЕС 2013 September 01 – 04, 2013, 2013, O1-3.1-Publisher:
- Niš : Elektronski fakultet
Funding / projects:
- Physical and functional effects of radiation interaction with electrotechnical and biological systems (RS-MESTD-Basic Research (BR or ON)-171007)
- Electrodynamics of the atmosphere at the urban locations in Serbia (RS-MESTD-Technological Development (TD or TR)-37019)
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Ignjatović, Milan AU - Cvetić, Jovan AU - Heidler, Fridolin AU - Marković, Slavoljub AU - Pavlović, Dragan AU - Đurić, Radivoje AU - Šumarac Pavlović, Dragana AU - Trifković, Zoran PY - 2013 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4882 AB - Characteristics of the lightning channel corona sheath surrounding a thin channel core are examined using the generalized lightning traveling current source (GTCS) return stroke model. The return stroke process is modeled with positive charge coming from the channel core discharging negative leader charge in the corona sheath. The corona sheath model that predicts charge motion in the sheath is used to derive sheath radius vs. time expressions during the return stroke. According to the corona sheath model, previously pro-posed in [1] and [2], it consists of two zones, zone 1 (surrounding the channel core with net positive charge) and zone 2 (surrounding zone 1 with negative charge). We adopted the assumption of a constant electric field inside zone 1 of the corona sheath observed in laboratory experimental research of corona discharges. We examined the influence of different magnitudes of the breakdown electric field at the boundaries of both zones on the dynamics of the return stroke. The new channel discharge function, calculated from the close electric field waveform measured at 15m from the channel [7], is used. The calculations have shown that the maximum radii of zones 1 and 2 significiaantly decrease compared to the previous results given in [9]. Similar conclusion holds for the velocities of zone 1 and 2 boundaries. It is concluded that the new channel discharge function gives the results for the time dependence of both the radii and their velocities in a good agreement with the theoretical predictions. PB - Niš : Elektronski fakultet C3 - 11th International Conference on Applied Electromagnetics - ПЕС 2013 September 01 – 04, 2013 T1 - Dynamics of the lightning channel using generalized traveling current source return stroke model SP - O1-3.1 UR - https://hdl.handle.net/21.15107/rcub_machinery_4882 ER -
@conference{ author = "Ignjatović, Milan and Cvetić, Jovan and Heidler, Fridolin and Marković, Slavoljub and Pavlović, Dragan and Đurić, Radivoje and Šumarac Pavlović, Dragana and Trifković, Zoran", year = "2013", abstract = "Characteristics of the lightning channel corona sheath surrounding a thin channel core are examined using the generalized lightning traveling current source (GTCS) return stroke model. The return stroke process is modeled with positive charge coming from the channel core discharging negative leader charge in the corona sheath. The corona sheath model that predicts charge motion in the sheath is used to derive sheath radius vs. time expressions during the return stroke. According to the corona sheath model, previously pro-posed in [1] and [2], it consists of two zones, zone 1 (surrounding the channel core with net positive charge) and zone 2 (surrounding zone 1 with negative charge). We adopted the assumption of a constant electric field inside zone 1 of the corona sheath observed in laboratory experimental research of corona discharges. We examined the influence of different magnitudes of the breakdown electric field at the boundaries of both zones on the dynamics of the return stroke. The new channel discharge function, calculated from the close electric field waveform measured at 15m from the channel [7], is used. The calculations have shown that the maximum radii of zones 1 and 2 significiaantly decrease compared to the previous results given in [9]. Similar conclusion holds for the velocities of zone 1 and 2 boundaries. It is concluded that the new channel discharge function gives the results for the time dependence of both the radii and their velocities in a good agreement with the theoretical predictions.", publisher = "Niš : Elektronski fakultet", journal = "11th International Conference on Applied Electromagnetics - ПЕС 2013 September 01 – 04, 2013", title = "Dynamics of the lightning channel using generalized traveling current source return stroke model", pages = "O1-3.1", url = "https://hdl.handle.net/21.15107/rcub_machinery_4882" }
Ignjatović, M., Cvetić, J., Heidler, F., Marković, S., Pavlović, D., Đurić, R., Šumarac Pavlović, D.,& Trifković, Z.. (2013). Dynamics of the lightning channel using generalized traveling current source return stroke model. in 11th International Conference on Applied Electromagnetics - ПЕС 2013 September 01 – 04, 2013 Niš : Elektronski fakultet., O1-3.1. https://hdl.handle.net/21.15107/rcub_machinery_4882
Ignjatović M, Cvetić J, Heidler F, Marković S, Pavlović D, Đurić R, Šumarac Pavlović D, Trifković Z. Dynamics of the lightning channel using generalized traveling current source return stroke model. in 11th International Conference on Applied Electromagnetics - ПЕС 2013 September 01 – 04, 2013. 2013;:O1-3.1. https://hdl.handle.net/21.15107/rcub_machinery_4882 .
Ignjatović, Milan, Cvetić, Jovan, Heidler, Fridolin, Marković, Slavoljub, Pavlović, Dragan, Đurić, Radivoje, Šumarac Pavlović, Dragana, Trifković, Zoran, "Dynamics of the lightning channel using generalized traveling current source return stroke model" in 11th International Conference on Applied Electromagnetics - ПЕС 2013 September 01 – 04, 2013 (2013):O1-3.1, https://hdl.handle.net/21.15107/rcub_machinery_4882 .