Effect of Parameters of Liquids on Amplitudes of Pressure Waves Generated by Electric Discharge

Smirnov, A. P.; Zhekul, V. G.; Taftai, E. I.; Khvoshchan, O. V.; Shvets, I. S.

doi:10.3103/s1068375519010149

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…Так, авторы [16] видят перспективу использования такого многоволнового воздействия в медицине. Исследованию волны сжатия первого этапа посвящены работы [17,18], а пульсации ПГП изучались в [16,[19][20][21].…”

Section: анализ проблемыunclassified

Investigation of the Influence of a Limited Volume on the Pulsation of a Vapor-Gas Cavity During a High-Voltage Electric Explosion in a Liquid

Smirnov,

Khvoshchan,

Denisyuk

2024

EOM

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The influence of a limited volume on the hydrodynamic post-discharge processes during a high-voltage electric explosion (HVEE) and an explosion of a thin initiating conductor (ETIC) in a liquid is estimated, and the dynamics of a vapor-gas cavity (VGC) under those conditions is studied. Experimental studies have shown the advantage of the HVEE in comparison with the ETIC in terms of the energy contributed into the VGC expressed in an increase of the period of the VGC pulsation up to 55%. It was noted that with the ETIC in a limited volume of the discharge chamber, the period of pulsation of the VGC decreases up to 7.5 times compared to that of the ETIC in an unlimited space under the same initial conditions. A method for calculating the quasi-static pressure during an electric explosion in a limited volume with limited geometric parameters was proposed. The correlation between the calculated quasi-static pressure and the amplitude of the generated first compression wave is mentioned.

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Section: анализ проблемыunclassified

Investigation of the Influence of a Limited Volume on the Pulsation of a Vapor-Gas Cavity During a High-Voltage Electric Explosion in a Liquid

Smirnov,

Khvoshchan,

Denisyuk

2024

EOM

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“…Электрический взрыв в жидкости используется как источник акустических сигналов [2] и при обработке различных материалов [3][4][5], в медицине [6] и сельском хозяйстве [7], а также в нефтедобывающей промышленности [8][9][10][11][12][13]. Для многих электроразрядных технологий (например, дробление и измельчение материалов, декольматация скважин) основным действующим фактором являются генерируемые электрическими взрывами волны давлений [14][15], исследованию которых посвящено большое количество работ [16][17][18][19][20][21].…”

Section: Introductionunclassified

Experimental Studies of Hydrodynamic and Energy Characteristics of a High-Voltage Electrochemical Explosion in Limited Liquid Volumes

Smirnov,

Khvoshchan

2023

EOM

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In this paper, the dependence of the charging voltage, stored electrical energy, and the mass of the combusted exothermic mixture on electrical, energy and hydrodynamic characteristics of a high-voltage electrochemical explosion (HVEE) in limited volumes of liquid on is experimentally studied. A comparison with other methods of initiating an electric discharge under similar conditions was made. The results established that the HVEE makes it possible to carry out a high-voltage electric discharge with low energy losses (less than 9%) and to realize an electrical breakdown mode close to aperiodic. It has been found that HVEE can generate pressure waves with an amplitude up to 37% and a pulse up to 45% larger (at a charging voltage of 25 kV or higher) than that of an electric explosion of an initiating metallic conductor of optimum length under the same initial conditions. It was found that an increase in the charging voltage leads to an increase in the amplitude and pulse of the generated pressure wave along a linear dependence. A compre-hensive analysis of the dependences of the energy and hydrodynamic characteristics showed that the main influence on the formation of the pressure wave pulse during the HVEE is provided by both the stored electrical energy and the interconnection between the electrical parameters of the discharge circuit and the mass of the burning exothermic mixture, which determines the shape of the discharge characteristics.

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“…The theory of the "hydroelectric effect" is widely used in the oil and gas field [1] . The reservoir resonance transform device independently developed based on the "hydroelectric effect" theory is affected by water quality, electrode material, and other factors during shale gas stimulation [2] .…”

Section: Introductionmentioning

confidence: 99%

Identification of Pulse Discharge Parameters in Water for Reservoir Resonance Transform Device

Kang

Shao

Gao

2022

J. Phys.: Conf. Ser.

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The reservoir resonance transform device is applied to unconventional shale gas stimulation. To achieve the purpose of resonance stimulation, the discharge frequency is dynamically corresponding to the natural frequency of the reservoir. However, the discharge parameters under the same conditions differ in the resonance process. It is hard to analyze the real-time change of reservoir frequency precisely. Therefore, the identification of pulse discharge parameters in water is extremely important. In this paper, an equivalent circuit model of pulse discharge in water is established to analyze the time-varying resistance. The Kalman filter makes the discrete resistance data continuous and reduces the interference caused by the random discharge. Meanwhile, the data error analysis is carried out. The results show that the variance of pulse discharge resistance in water based on the Kalman filter is less than 0.528 compared with the experiment value, so the identified resistance obtained by this method can be used in the study of resonant discharge in the same frequency.

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Effect of Parameters of Liquids on Amplitudes of Pressure Waves Generated by Electric Discharge

Cited by 7 publications

References 9 publications

Investigation of the Influence of a Limited Volume on the Pulsation of a Vapor-Gas Cavity During a High-Voltage Electric Explosion in a Liquid

Investigation of the Influence of a Limited Volume on the Pulsation of a Vapor-Gas Cavity During a High-Voltage Electric Explosion in a Liquid

Experimental Studies of Hydrodynamic and Energy Characteristics of a High-Voltage Electrochemical Explosion in Limited Liquid Volumes

Identification of Pulse Discharge Parameters in Water for Reservoir Resonance Transform Device

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