We present the results of the research on underwater electrical explosion of planar copper wire arrays, accompanied by the generation of a planar shock, using the synchrotron-based phase-contrast radiography imaging capabilities of the ID19 beamline at the European Synchrotron Radiation Facility. It is shown that the interaction of a strong shock with an air–water interface leads to additional acceleration of the wire expansion due to a rarefaction wave along with the emergence of micro-jets. In the case of a target placed above the array, we observed the formation of a cavity between the array and the target due to the interaction of two rarefaction waves. The results of two-dimensional hydrodynamic simulations of the wire explosion and the interaction of the generated shock with the water–air and water-target interfaces showed good agreement with experimental results.
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June 2022
Research Article|
June 01 2022
Peculiarities of planar shockwave interaction with air–water interface and solid target
D. Maler
;
D. Maler
a)
1
Physics Department, Technion, Israel Institute of Technology
, Haifa 3200003, Israel
a)Author to whom correspondence should be addressed: daniel.maler@campus.technion.ac.il
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S. Efimov;
S. Efimov
1
Physics Department, Technion, Israel Institute of Technology
, Haifa 3200003, Israel
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M. Liverts
;
M. Liverts
2
Engineering Mechanics Department, KTH, Royal Institute of Technology
, Stockholm 114 28, Sweden
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S. Theocharous
;
S. Theocharous
3
Plasma Physics Group, Imperial College London
, London SW7 2BW, United Kingdom
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J. Strucka
;
J. Strucka
3
Plasma Physics Group, Imperial College London
, London SW7 2BW, United Kingdom
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Y. Yao;
Y. Yao
3
Plasma Physics Group, Imperial College London
, London SW7 2BW, United Kingdom
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W. Proud;
W. Proud
3
Plasma Physics Group, Imperial College London
, London SW7 2BW, United Kingdom
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A. Rack
;
A. Rack
4
European Synchrotron Radiation Facility
, CS40220, 38043 Grenoble Cedex 9, France
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B. Lukic
;
B. Lukic
4
European Synchrotron Radiation Facility
, CS40220, 38043 Grenoble Cedex 9, France
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S. N. Bland
;
S. N. Bland
3
Plasma Physics Group, Imperial College London
, London SW7 2BW, United Kingdom
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Ya. E. Krasik
Ya. E. Krasik
1
Physics Department, Technion, Israel Institute of Technology
, Haifa 3200003, Israel
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a)Author to whom correspondence should be addressed: daniel.maler@campus.technion.ac.il
Phys. Plasmas 29, 063502 (2022)
Article history
Received:
April 11 2022
Accepted:
May 13 2022
Citation
D. Maler, S. Efimov, M. Liverts, S. Theocharous, J. Strucka, Y. Yao, W. Proud, A. Rack, B. Lukic, S. N. Bland, Ya. E. Krasik; Peculiarities of planar shockwave interaction with air–water interface and solid target. Phys. Plasmas 1 June 2022; 29 (6): 063502. https://doi.org/10.1063/5.0095506
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