Research on pressure characteristics of high-voltage electric pulse water shock waves under different discharge parameters
Zhang Zhenghao
Li Yaobin
Abstract：The pressure characteristics of high-voltage electric pulse pulse water shock waves have a decisive influence on the fracturing effect of coal.Water medium breakdown experiments were conducted using a high-voltage electric pulse system under various discharge parameters.According to the pressure waveforms at different discharge distances,the effects of the discharge parameters on the pressure characteristics of water shock waves were analyzed.The results revealed the waveform evolution law at different stages of water shock wave generation by high-voltage electric pulses,providing a reliable basis for optimizing discharge parameters and improving water shock wave efficiency.Additionally,the concept of"saturation voltage"was introduced for the first time.When the discharge voltage is below the saturation voltage,the peak pressure of the water shock wave steadily increases with increasing discharge voltage;when the discharge voltage reaches the saturation voltage,the increase in peak pressure of the water shock wave gradually stabilizes.The study also found that the peak pressure of water shock waves decays with a power function of propagation distance,and proposed an empirical formula for pressure based on discharge parameters and discharge distance,which can accurately predict the peak pressure of water shock waves.
Keywords：high-voltage electric pulsedischarge parameterspressure characteristicspenetration experiment
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 66-70 )