Abstract
In this work, the influence of different experimental parameters (electrode gap, electrode shape, pressure and gas component) on spark discharge characteristics is investigated. The dynamic processes of voltage, current, energy, and power during the spark discharge process are analyzed. Electrical characteristic parameters including the discharge energy, discharge efficiency, spark resistance and total resistance are studied. High-speed schlieren technology is used to visualize the spark discharge and shock wave formation under different pressure and electrode shapes. The effect of pressure on the shape, radius and average velocity of the shock wave is investigated.
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