Aluminum micro-particles combustion ignited by underwater electrical wire explosion

Efimov, S.; Gilburd, L.; Fedotov-Gefen, A.; Gurovich, V. Tz.; Felsteiner, J.; Krasik, Ya. E.

doi:10.1007/s00193-012-0361-3

Cited by 14 publications

(8 citation statements)

References 10 publications

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“…This is explained by the additional energy deposited into the water flow due to Al wire combustion. 14 The simulations also showed that in the case of explosion of the 20 mm-diameter Cu wire array, the state of water P ¼ 10 12 Pa, T ¼ 5 eV, and d ¼ 5 could be realized in the volume with r ¼ 13 lm with a time duration of 17 ns.…”

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confidence: 81%

Generation of extreme state of water by spherical wire array underwater electrical explosion

et al. 2012

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The results of the first experiments on the underwater electrical explosion of a spherical wire array generating a converging strong shock wave are reported. Using a moderate pulse power generator with a stored energy of ≤6 kJ and discharge current of ≤500 kA with a rise-time of ∼300 ns, explosions of Cu and Al wire arrays of different diameters and with a different number and diameter of wires were tested. Electrical, optical, and destruction diagnostics were used to determine the energy deposited into the array, the time-of-flight of the shock wave to the origin of the implosion, and the parameters of water at that location. The experimental and numerical simulation results indicate that the convergence of the shock wave leads to the formation of an extreme state of water in the vicinity of the implosion origin that is characterized by pressure, temperature, and compression factors of (2 ± 0.2) × 1012 Pa, 8 ± 0.5 eV, and 7 ± 0.5, respectively.

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confidence: 81%

Generation of extreme state of water by spherical wire array underwater electrical explosion

et al. 2012

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“…Thereby determining the magnitude of the improvements caused by the electrical explosion shockwave stimulation. This will provide basis for theoretical support in engineering applications [49][50][51][52][53][54][55][56][57][58][59][60][61].…”

Section: Mechanism Of Repetitive Pulse Shock Wave Stimulationmentioning

confidence: 99%

Experimental evaluation of near wellbore stimulation – using electrical explosion shockwave on tight sand reservoir

He¹,

Zhang²,

Zhang³

et al. 2018

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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In recent years, the application of electrical explosion shockwave as a stimulation technology is increasing in oil fields, but lacks relevant theoretical knowledge to support it. In view of this problem, a research was carried out on experimental study of electrical explosion shockwave stimulation on the tight sand reservoir to determine the effective range of the resulting effects. An experimental platform for testing electrical explosion shockwave is established. Porosity, permeability and other mechanical parameters of tight sand stone samples are tested before and after electrical explosion shockwave treatment. The result shows clear improvement of the above mentioned parameters and the effective range.

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“…Extensive work was also published (for example [10, 11] and [12]) on Al powder added to conventional high explosives for increasing their specific energy density, as well as Al nanoparticles suspended in water, a combination termed ‘slurry’, chemically activated by UWEWs (for example [1] and [4]).…”

Section: Introductionmentioning

confidence: 99%

Determination of the Gurney velocity for the unconventional aluminum‐water explosive**

Frost

Novac

Danilov

et al. 2023

Propellants Explo Pyrotec

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The present work is dedicated to the determination of the Gurney velocity of the unconventional aluminum‐water explosive. The paper presents the experimental arrangement, the diagnostic equipment used, and the main results that have been obtained. The experiments report the accurate velocity measurement of projectiles accelerated by aluminum and copper underwater exploding wires. Based on the results obtained, a Gurney velocity of 1.88 km/s has been obtained for the unconventional aluminum‐water explosive. The result is discussed and compared with typical values for standard explosives.

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Aluminum micro-particles combustion ignited by underwater electrical wire explosion

Cited by 14 publications

References 10 publications

Generation of extreme state of water by spherical wire array underwater electrical explosion

Generation of extreme state of water by spherical wire array underwater electrical explosion

Experimental evaluation of near wellbore stimulation – using electrical explosion shockwave on tight sand reservoir

Determination of the Gurney velocity for the unconventional aluminum‐water explosive**

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