Numerical Modelling of Ionic Wind Generation By Negative Corona Discharge in Ambient Air With Experimental Validation*

2017 ◽  
Author(s):  
She Chen ◽  
Sander Nijdam
Keyword(s):  
Numerical Modelling ◽  
Corona Discharge ◽  
Experimental Validation ◽  
Ambient Air ◽  
Wind Generation ◽  
Ionic Wind ◽  
Negative Corona ◽  
Negative Corona Discharge

scholarly journals Pulse Current of Multi-Needle Negative Corona Discharge and Its Electromagnetic Radiation Characteristics

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3120 ◽  
Author(s):  
Chuang Wang ◽  
Xi Chen ◽  
Jiting Ouyang ◽  
Tie Li ◽  
Jialu Fu
Keyword(s):  
Corona Discharge ◽  
High Voltage ◽  
Electromagnetic Interference ◽  
Pulse Current ◽  
Ambient Air ◽  
Discharge Process ◽  
Negative Corona ◽  
Radiation Characteristics ◽  
Negative Corona Discharge ◽  
Discharge Structure

Negative corona discharge occurs widely in high voltage transmission lines and other “high voltage” uses, which can cause strong electromagnetic interference (EMI). In this research, the pulse current of multi-needle negative corona discharge and its electromagnetic (EM) radiation characteristics were studied and compared with that of single-needle negative corona discharge. A dipole radiation model was established to analyze the EM radiation characteristics of the negative corona discharge. The results show that the Trichel pulse discharge process of one discharge needle in multi-needle discharge structure will inhibit the discharge of the other discharge needles. It is only when the voltage reaches a certain threshold will the current and EM radiation fields of multi-needle discharge structure with a significant increasing of amolitude. The frequency of EM radiation of negative corona discharge is not affected by the number of needles, but is only related to ambient air pressure. This research provides a basis for detecting corona discharge sources in different conditions.

Sign in / Sign up

Export Citation Format

Share Document