TY - JOUR
T1 - Flow distribution and pressure of air due to ionic wind in pin-to-plate corona discharge system
AU - Kawamoto, H.
AU - Yasuda, H.
AU - Umezu, S.
N1 - Funding Information:
The authors would like to express their thanks to Dr. Tomoyuki Ito (Fuji Xerox) and Dr. Yoshiaki Ito (Kanagawa Industrial Technology Research Institute) for their helpful suggestions and to Prof. Masatsugu Yoshizawa (Keio University) for his support of carrying out the Doppler experiment. This work is supported by the 21st Century COE Program of Japan Society for Promotion of Science.
PY - 2006/6
Y1 - 2006/6
N2 - An electrohydrodynamic investigation has been carried out in a pin-to-plate gas discharge system to clarify the mechanism of repulsive force generation between a pin and plate electrode at corona discharge. Numerical calculations have been conducted in two steps. First, the axi-cylindrical static corona discharge field was calculated with the finite-element method to deduce the Coulombic body force ρ E applied to the air, where ρ is the charge density and E is the electric field, and then the induced ionic wind was calculated with the finite differential method. The calculated pressure distribution on the plate electrode was on the order of 10 Pa which was in good agreement with the measured pressure distribution. The calculated air velocity at the center was several m/s and was confirmed by a time-of-flight experiment and the velocity distribution near the pin electrode also agreed with measurements using a laser Doppler velocimeter. Pressure and wind velocity were increased at high-applied voltage. These results confirm that the ionic wind is the cause of the repulsive force to the pin electrode at the corona discharge.
AB - An electrohydrodynamic investigation has been carried out in a pin-to-plate gas discharge system to clarify the mechanism of repulsive force generation between a pin and plate electrode at corona discharge. Numerical calculations have been conducted in two steps. First, the axi-cylindrical static corona discharge field was calculated with the finite-element method to deduce the Coulombic body force ρ E applied to the air, where ρ is the charge density and E is the electric field, and then the induced ionic wind was calculated with the finite differential method. The calculated pressure distribution on the plate electrode was on the order of 10 Pa which was in good agreement with the measured pressure distribution. The calculated air velocity at the center was several m/s and was confirmed by a time-of-flight experiment and the velocity distribution near the pin electrode also agreed with measurements using a laser Doppler velocimeter. Pressure and wind velocity were increased at high-applied voltage. These results confirm that the ionic wind is the cause of the repulsive force to the pin electrode at the corona discharge.
KW - Corona discharge
KW - Electrohydrodynamics
KW - Ionic wind
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U2 - 10.1016/j.elstat.2005.10.023
DO - 10.1016/j.elstat.2005.10.023
M3 - Article
AN - SCOPUS:33645965557
SN - 0304-3886
VL - 64
SP - 400
EP - 407
JO - Journal of Electrostatics
JF - Journal of Electrostatics
IS - 6
ER -