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Hydrodynamic modeling for discharge analysis in dielectric liquids with finite element method under lightning impulse

The response of lightning impulse voltage was explored in dielectric liquids employing the hydrodynamic modeling with three charge carriers by using the finite element method. To understand the physical behaviors of discharge phenomena in dielectric liquids, the response of step voltage has been extensively studied recently by using numerical techniques, but that of lightning impulse voltage was rarely seen in technical literatures. We, therefore, tested the impulse response with a sphere-plane electrode and compared the experimental results.