Title :
Shock wave due to pulsed streamer discharges in water
Author :
Katsuki, Sunao ; Tanaka, Keiichi ; Fudamoto, Taisuke ; Namihira, Takao ; Akiyama, Hidenori ; Bluhm, Hansjoachim
Author_Institution :
Dept. of Electr. & Comput. Eng., Kumamoto Univ., Japan
Abstract :
Temporal development of shockwaves generated from streamers discharges in water was observed by means of time resolved imaging based on laser Schlieren method. Pressure of shock wave was calculated by Hugoniot´s equation, which utilizes the relation between the shock pressure and its propagation velocity. The streamer discharges were generated by pulsed positive voltages applied to a needle electrode. The measurements indicate that the pressure exceeding 1 GPa takes place only near the streamer discharges. Stronger shockwave was generated in more conductive water.
Keywords :
discharges (electric); electrodes; equations of state; pressure measurement; shock waves; wave propagation; Hugoniot´s equation; laser Schlieren method; needle electrode; pressure measurement; propagation velocity; pulsed positive voltage; pulsed streamer discharges; shock pressure; shock wave; water; Electric shock; Electrodes; Equations; Image resolution; Needles; Optical propagation; Optical pulse generation; Shock waves; Streaming media; Voltage;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433650
