Underwater Electrical Wire Explosion and Its Applications

Krasik, Ya. E.; Grinenko, A.; Sayapin, A.; Efimov, S.; Fedotov, A.; Gurovich, V.Z.; Oreshkin, V. I.

doi:10.1109/tps.2008.918766

Cited by 132 publications

(36 citation statements)

References 35 publications

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“…One can see that the converging SW has azimuthal symmetry already at r Յ 4 mm which agrees with the results of two dimensional HD simulations. 9 Thus individual SWs generated by the neighboring exploding wires overlap each other at the distance of Յ1 mm from the initial array radius, forming a converging cylindrical SW. However, two main problems were found in the application of TOF method for determining the SW pressure at the vicinity of its implosion axis.…”

Section: Resultsmentioning

confidence: 99%

Characterization of converging shock waves generated by underwater electrical wire array explosion

et al. 2008

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Results of ∼200 kbar pressure generation at 50 μm distance from the implosion axis of the converging shock wave produced by an underwater electrical explosion of a cylindrical wire array are reported. The array was exploded using a submicrosecond high-current generator (stored energy of ∼4.2 kJ, current amplitude of ∼325 kA, rise time of ∼1 μs). Multiframe shadow imaging of the shock wave was used to determine its time of flight. These data were applied for calculating the pressure at the vicinity of the implosion axis using one dimensional hydrodynamic calculations and the Whitham approach. However, it was found that in the case of wire array radius ≤5 mm, multiframe imaging cannot be used at the final stage of the shock wave implosion because of possible changes in the optical properties of the water. Optical and spectroscopic methods based on either the change in the refraction index of the optical fiber or spectroscopy of the plasma formed inside the capillary placed at the implosion axes were used for shock wave characterization. A satisfactory agreement was found between the results obtained by these methods.

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Section: Resultsmentioning

confidence: 99%

Characterization of converging shock waves generated by underwater electrical wire array explosion

et al. 2008

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“…Besides, the HES cell is also used in shockwave generator [17], dielectric barrier discharge [18], industrial exhaust processing [19], material surface treatment [20], ozone production [21], food sterilization [22], cell treatment and cell mutation [23]. …”

Section: Applications Of Hes Based On Pulse Transformer Chargingmentioning

confidence: 99%

“…Lpl and Lsl represent the parasitic inductances in the primary circuit and secondary circuit, while Rp and Rs stand for the parasitic resistances in the primary circuit and secondary circuit respectively. L1, L2 and M of transformer are defined in (17) and (18). ip(t) and is(t) represent the current in the primary and secondary circuit.…”

Section: Analysis Of Energy Transferring In Hes Based On Pulse Transfmentioning

confidence: 99%

Hybrid Energy Storage and Applications Based on High Power Pulse Transformer Charging

Liu¹

2013

Energy Storage - Technologies and Applications

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“…Thus, one can consider applying underwater electrical wire explosion (UEWE) to achieve fast ignition of aluminum powder combustion. Indeed, UEWE is characterized by fast phase transitions of the exploding wire resulting in formation of a wire plasma with a temperature of several eV, pressure up to 5 × 10 8 Pa, and SW with pressure at the front up to 5 × 10 9 Pa [15].…”

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“…In the second method of measuring the target kinetic energy [15], a series of thin current-carrying wires were used that disconnected a part of an external electrical circuit each time a wire was destroyed by the moving target. Thus, the time delays between the current interruptions in the wires were used to obtain the target TOF.…”

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Aluminum micro-particles combustion ignited by underwater electrical wire explosion

et al. 2012

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The results of experiments on the ignition of aluminum micro-particles' combustion by underwater electrical wire explosion (UEWE) are reported. A compact sub-microsecond timescale duration high-current (240 kA) pulsed power generator was used to explode copper and aluminum wires electrically in different aluminum powder suspensions. The combustion of the aluminum micro-particles was characterized by a target time-of-flight method and optical measurements of the exploding wire and aluminum suspension light emission. It was shown that, by using a proper solution and type of aluminum powder, this method allows aluminum micro-particle combustion in the estimated range of 32-79 % efficiency.

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Underwater Electrical Wire Explosion and Its Applications

Cited by 132 publications

References 35 publications

Characterization of converging shock waves generated by underwater electrical wire array explosion

Characterization of converging shock waves generated by underwater electrical wire array explosion

Hybrid Energy Storage and Applications Based on High Power Pulse Transformer Charging

Aluminum micro-particles combustion ignited by underwater electrical wire explosion

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