TY - GEN
T1 - Investigation of the shcok wave generated by discharge
AU - Jia, Min
AU - Jin, Di
AU - Song, Huimin
AU - Wu, Yun
AU - Huang, Shengfang
AU - Liang, Hua
N1 - Publisher Copyright:
© 2017, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2017
Y1 - 2017
N2 - Nanosecond DBD discharge and pulsed-DC arc discharge have been widely investigated for the potential application on aerodynamic performance improvement. However, the discharge in different forms, the gas heating mechanism and the effect is different. The characteristic and mechanism of oblique shock contral in supersonic flow remain unsolved. Through time-resolved schlieren method, the characteristic of the nanosecond DBD discharge and pulsed-DC arc discharge aerodynamic actuation is studied. Images presented here show that both the DBD discharge and pulsed-DC arc discharge can generate shock wave, which was induced by rapid gas heating. The velocity of pulsed-DC arc discharge moves more quickly than the DBD discharge at the beginning of discharge, and then decreases to 340m/s, and becomes stable, which means the shockwave has turned weaker and transmitted sonically. Based on the discharge characteristic, shockwave control experiment and comparison of contral effective on the wind tunnel bottom has been made between the nanosecond DBD discharge and pulsed-DC arc discharge. It is shown that with pulsed-DC arc discharge, the control is more effective.
AB - Nanosecond DBD discharge and pulsed-DC arc discharge have been widely investigated for the potential application on aerodynamic performance improvement. However, the discharge in different forms, the gas heating mechanism and the effect is different. The characteristic and mechanism of oblique shock contral in supersonic flow remain unsolved. Through time-resolved schlieren method, the characteristic of the nanosecond DBD discharge and pulsed-DC arc discharge aerodynamic actuation is studied. Images presented here show that both the DBD discharge and pulsed-DC arc discharge can generate shock wave, which was induced by rapid gas heating. The velocity of pulsed-DC arc discharge moves more quickly than the DBD discharge at the beginning of discharge, and then decreases to 340m/s, and becomes stable, which means the shockwave has turned weaker and transmitted sonically. Based on the discharge characteristic, shockwave control experiment and comparison of contral effective on the wind tunnel bottom has been made between the nanosecond DBD discharge and pulsed-DC arc discharge. It is shown that with pulsed-DC arc discharge, the control is more effective.
UR - https://www.scopus.com/pages/publications/85017551463
M3 - 会议稿件
AN - SCOPUS:85017551463
SN - 9781624104633
T3 - 21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017
BT - 21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017
Y2 - 6 March 2017 through 9 March 2017
ER -