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Information × Registration Number 0215U009063, 0114U005511 , R & D reports Title Mathematical modeling of metal wire electrical explosion in water induced by the capacitors' discharge with initial voltage 3 to 10 kV at stored energy 1 to 5 kJ popup.stage_title Head Kuskova Nataliy Ivanivna, Registration Date 27-08-2015 Organization Institute of Pulse Research and Engineering popup.description2 The object of the research is physical processes occurring during and after electric explosion of conductors in water. The purpose of the research is exploring the efficiency of energy charges in the conductor depending on RLC-circuit parameters, initial voltage, temperature and hydrostatic pressure in the chamber. The method of the research is mathematical modeling. The mathematical model of electrical explosion of cylindrical conductors is developed. The analytical expressions that provide the link between pulse pressure in the exploding conductor and power characteristics, characteristics of the material and dimensions of the conductor, as well as external conditions are obtained. The analysis of the obtained expressions showed that pulse pressure in the exploding conductor depends on the square of relation of tension to inductance, the initial resistance, dimensions and material of the conductor; capacitance depends only on the optimal size of conductor; the ambient temperature may not have a noticeable effect on the explosion stage; the external pressure does not significantly affect the pressure in the exploding conductor. Numerical experiment determined the effect of charging voltage and parameters of the RLC-circuit in electric and hydrodynamic processes of electrical explosion of conductors. Mathematical modeling of electrical explosion of a nickel conductor allowed making a comparative analysis of the influence of electric parameters on the hydrodynamic characteristics (pressure and expansion rate of the discharge channel). Hydrodynamic characteristics increase significantly with changing the conductor material Ni-Al-Cu. Numerical study of influence of temperature (up to 100 C) and pressure (up to 35 MPa) on the characteristics of the explosion of the copper conductor showed that with increasing external hydrostatic pressure the electrical characteristics remain unchanged. The pressure in the discharge channel and the initial velocity of the shock wave propagation in water increases; the maximum pressure in the compression wave at different distances from the discharge channel decreases; the rate of expansion of the channel remains almost unchanged. Product Description popup.authors Бакларь В.Ю. Хайнацький С.О. Челпанов Д.І. popup.nrat_date 2020-04-02 Close