The results of experimental research on the acoustic and electrical characteristics of underwater spark discharges facilitated by a preliminary discharge are presented. The latter was produced through the application of a short duration high-voltage pulse formed by a Marx generator. The application of this pulse lead to the formation of a low-density region in the form of a streamer which transformed to an oscillating vapor cavity. It was shown that this method provided a breakdown of a significantly increased interelectrode gap for the same charging voltage of the main capacitor and allowed the generation of stronger shocks. The temporal development of transient discharges in a long gap and the relationships between the hydrodynamic and electrical parameters of such discharges are reported and analyzed.
REFERENCES
1.
P.
Lukes
, P.
Sunka
, P.
Hoffer
, V.
Stelmashuk
, P.
Pouckova
, M.
Zadinova
, J.
Zeman
, L.
Dibdiak
, H.
Kolarova
, K.
Tomankova
, S.
Binder
, and J.
Benes
, “Focused tandem shocks in water and their potential application in cancer treatment
,” Shock Waves
24
(1
), 51
–57
(2014
).2.
K.
Lee
, K. J.
Chung
, Y. S.
Hwang
, and C. Y.
Kim
, “Underwater spark discharge with long transmission line for cleaning horizontal wells
,” J. Appl. Phys.
121
, 243302
(2017
). 3.
F.
Ren
, L.
Ge
, V.
Stelmashuk
, T. E.
Thomas Rufford
, H.
Xing
, and V.
Rudolph
, “Characterisation and evaluation of shockwave generation in water conditions for coal fracturing
,” J. Nat. Gas Sci. Eng.
66
, 255
–264
(2019
). 4.
S.
Kumar
, R.
Singh
, T.
Singh
, and B.
Sethi
, “Surface modification by electrical discharge machining: A review
,” J. Mater. Process. Technol.
209
(8
), 3675
–3687
(2009
). 5.
V.
Stelmashuk
and P.
Hoffer
, “Shock waves generated by an electrical discharge on composite electrode immersed in water With different conductivities
,” IEEE Trans. Plasma Sci.
40
, 1907
–1912
(2012
). 6.
Y.
Sun
, I. V.
Timoshkin
, M. J.
Given
, M. P.
Wilson
, T.
Wang
, S. J.
MacGregor
, and N.
Bonifaci
, “Acoustic impulses generated by air-bubble stimulated underwater spark discharges
,” IEEE Trans. Dielectr. Electr. Insul.
25
, 1915
–1923
(2018
). 7.
S. W.
Liu
, L.
Yi
, Z. Y.
Li
, X. D.
Li
, G.
Zhou
, H.
Li
, and F.
Lin
, “Effect of electrical breakdown modes on shock wave intensity in water
,” IEEE Trans. Dielectr. Electr. Insul.
25
, 1679
–1687
(2018
). 8.
S. M.
Korobeinikov
, A. V.
Melekhov
, and A. S.
Besov
, “Breakdown initiation in water with the aid of bubbles
,” High Temp.
40
, 652
–659
(2002
). 9.
V.
Stelmashuk
, “Observation of a spark channel generated in water with shock wave assistance in plate-to-plate electrode configuration
,” Phys. Plasmas
21
, 010703
(2014
). 10.
V.
Stelmashuk
, “Time-resolved processes in a pulsed electrical discharge in water generated with shock wave assistance in a plate-to-plate configuration
,” J. Phys. D: Appl. Phys.
47
, 495204
(2014
). (7 pp). 11.
V.
Stelmashuk
, “Time evolution of a high-voltage discharge in water With shock wave assistance in a Pin to Pin geometry
,” IEEE Trans. Plasma Sci.
42
, 2614
–2615
(2014
). 12.
V.
Stelmashuk
, “Time evolution of a high-voltage discharge in water With shock wave assistance in a plate-to-plate geometry
,” IEEE Trans. Plasma Sci.
42
, 2626
–2627
(2014
). 13.
V.
Stelmashuk
, “Microsecond electrical discharge in water in plate-to-plate configuration with nitrogen bubble injection
,” IEEE Trans. Plasma Sci.
44
, 702
–707
(2016
). 14.
K.
Lee
, K.
Chung
, and Y. S.
Hwang
, “Enhanced shock wave generation via pre-breakdown acceleration using water electrolysis in negative streamer pulsed spark discharges
,” Appl. Phys. Lett.
112
, 134101
(2018
). 15.
H.
Ham
and J. J.
Yoh
, “Electronegative microchannel guided streamer propagation for in-liquid spark breakdown applications
,” Appl. Phys. Lett.
118
, 103905
(2021
). 16.
A. P. J.
van Deursen
and V.
Stelmashuk
, “Inductive sensor for lightning current measurement, fitted in aircraft windows - part I: Analysis for a circular window
,” IEEE Sens. J.
11
, 199
–204
(2011
). 17.
R. P.
Joshi
, J. F.
Kolb
, S.
Xiao
, and K. H.
Schoenbach
, “Aspects of plasma in water: Streamer physics and applications
,” Plasma Processes Polym.
6
, 763
–777
(2009
). 18.
V.
Stelmashuk
and J.
Schmidt
, “An empirical resistance equation for the modelling of corona discharge in saline water
,” Plasma Source Sci. Technol.
31
, 015011
(2022
). (9 pp). 19.
K. A.
Naugol’nykh
and N. A.
Roy
, Spark Discharges in Water
(Nauka
, Moscow
, 1971
). translation: Foreign Technology Division, Wright-Patterson AFB OH, 1974, 1971.20.
P.
Bruggeman
and C.
Leys
, “Non-thermal plasmas in and in contact with liquids
,” J. Phys. D: Appl. Phys.
42
, 053001
(2009
). (28 pp). 21.
S.
Gershman
and A.
Belkind
, “Time-resolved processes in a pulsed electrical discharge in argon bubbles in water
,” The European Physical Journal D
60
, 661
–672
(2010
).22.
V.
Stelmashuk
, P.
Hoffer
, K.
Kolacek
, and J.
Straus
, “Experimental study of spark channel expansion in water
,” IEEE Trans. Plasma Sci.
48
(2
), 491
–499
(2020
). 23.
S.
Lee
, K.
Chung
, and Y. S.
Hwang
, “Correlation of the peak pressure generated by an underwater spark discharge with energy absorption in a spark channel
,” J. Korean Phys. Soc.
66
(12
), 1845
–1851
(2015
). 24.
V. M.
Kosenkov
and V. M.
Bychkov
, “Mathematical modeling of transient processes in the discharge circuit and chamber of an electrohydraulic installation
,” Surf. Eng. Appl. Electrochem.
51
, 167
–173
(2015
). 25.
I.
Timoshkin
, R.
Fouracre
, M.
Given
, and S.
MacGregor
, “Hydrodynamic modelling of transient cavities in fluids generated by high voltage spark discharges
,” J. Phys. D: Appl. Phys.
39
, 4808
–4817
(2006
). 26.
V.
Stelmashuk
, V.
Prukner
, K.
Kolacek
, A.
Tuholukov
, P.
Hoffer
, J.
Straus
, A.
Frolov
, and V.
Jirasek
, “Optical emission spectroscopy of underwater spark generated by pulse high-voltage discharge with Gas bubble assistant
,” Processes
10
, 1474
(2022
). © 2023 Author(s). Published under an exclusive license by AIP Publishing.
2023
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