Considerations on spark-gap channel radius and electrical conductivity
Author
Source
Engineering and Technology Journal
Issue
Vol. 38, Issue 3B (31 Mar. 2020), pp.168-176, 9 p.
Publisher
Publication Date
2020-03-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Topics
Abstract EN
A simple phenomenological model is established to determine the temporal evolution of spark gap channel radius and electrical conductivity during the resistive phase period.
The present determination is based on the Braginskii's equation for the channel radius which includes the electrical conductivity of the discharge channel as a constant quantity.
In the present model, however, the electrical conductivity is regarded as a time varyingquantity.
Basing on this, a mathematical formulation for the channel radius as a function of time was derived, and this has made possible the derivation of an explicit expression for the conductivity as a function of time as well.
Taking the temporal average of the electrical conductivity offers an alternative mathematical formulation for the instantaneous radius based on a steady conductivity value that can be determined according to some experimental parameters.
It has been verified that both of the channel radius formulations mentioned above lead to similar results for the temporal evolution.
The obtained results of the channel radius were used to determine the instantaneous inductance of the spark channel.
The present model was used to examine the role of gas pressure and gap width on the temporal evolutions of the channel radius, conductivity, and inductance in nanosecond spark A simple phenomenological model is established to determine the temporal evolution of spark gap channel radius and electrical conductivity during the resistive phase period.
The present determination is based on the Braginskii's equation for the channel radius which includes the electrical conductivity of the discharge channel as a constant quantity.
In the present model, however, the electrical conductivity is regarded as a time varyingquantity.
Basing on this, a mathematical formulation for the channel radius as a function of time was derived, and this has made possible the derivation of an explicit expression for the conductivity as a function of time as well.
Taking the temporal average of the electrical conductivity offers an alternative mathematical formulation for the instantaneous radius based on a steady conductivity value that can be determined according to some experimental parameters.
It has been verified that both of the channel radius formulations mentioned above lead to similar results for the temporal evolution.
The obtained results of the channel radius were used to determine the instantaneous inductance of the spark channel.
The present model was used to examine the role of gas pressure and gap width on the temporal evolutions of the channel radius, conductivity, and inductance in nanosecond spark gaps.
American Psychological Association (APA)
Habib, Bassam Hanna. 2020. Considerations on spark-gap channel radius and electrical conductivity. Engineering and Technology Journal،Vol. 38, no. 3B, pp.168-176.
https://search.emarefa.net/detail/BIM-1020780
Modern Language Association (MLA)
Habib, Bassam Hanna. Considerations on spark-gap channel radius and electrical conductivity. Engineering and Technology Journal Vol. 38, no. 3B (2020), pp.168-176.
https://search.emarefa.net/detail/BIM-1020780
American Medical Association (AMA)
Habib, Bassam Hanna. Considerations on spark-gap channel radius and electrical conductivity. Engineering and Technology Journal. 2020. Vol. 38, no. 3B, pp.168-176.
https://search.emarefa.net/detail/BIM-1020780
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 175-176
Record ID
BIM-1020780