Free and Wire-Guided Spark Discharges in Water: Pre-Breakdown Energy Losses and Generated Pressure Impulses Article Swipe
Yifan Chai
,
Igor V. Timoshkin
,
Mark P. Wilson
,
M.J. Given
,
S.J. MacGregor
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3390/en16134932
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3390/en16134932
Impulsive underwater discharges have been investigated for many decades, yet the complex pre-breakdown processes that underpin their development are not fully understood. Higher pre-breakdown energy losses may lead to significant reduction in the magnitude and intensity of the pressure waves generated by expanding post-breakdown plasma channels. Thus, it is important to characterize these losses for different discharge types and to identify approaches to their reduction. The present paper analyses thermal pre-breakdown processes in the case of free path and wire-guided discharges in water: fast joule heating of a small volume of water at the high-voltage electrode and joule heating and the melting of the wire, respectively. The energy required for joule heating of the water and metallic wire have been obtained from thermal models, analysed and compared with the experimental pre-breakdown energy losses. Pressure impulses generated by free path and by wire-guided underwater discharges have also been investigated. It was shown that wire-guided discharges support the formation of longer plasma channels better than free path underwater discharges for the same energy available per discharge. This results in stronger pressure impulses developed by underwater wire-guided discharges. It has been shown that the pressure magnitude in the case of both discharge types is inversely proportional to the observation distance which is a characteristic of a spherical acoustic wave.
Related Topics
Concepts
Joule heating
Plasma
Underwater
Mechanics
Materials science
Thermal
Electrode
Voltage
Joule (programming language)
Joule effect
Discharge pressure
Volume (thermodynamics)
Chemistry
Electrical engineering
Composite material
Efficient energy use
Physics
Thermodynamics
Geology
Engineering
Gas compressor
Quantum mechanics
Oceanography
Physical chemistry
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/en16134932
- https://www.mdpi.com/1996-1073/16/13/4932/pdf?version=1687681961
- OA Status
- gold
- Cited By
- 4
- References
- 39
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4382058383
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4382058383Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/en16134932Digital Object Identifier
- Title
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Free and Wire-Guided Spark Discharges in Water: Pre-Breakdown Energy Losses and Generated Pressure ImpulsesWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2023Year of publication
- Publication date
-
2023-06-25Full publication date if available
- Authors
-
Yifan Chai, Igor V. Timoshkin, Mark P. Wilson, M.J. Given, S.J. MacGregorList of authors in order
- Landing page
-
https://doi.org/10.3390/en16134932Publisher landing page
- PDF URL
-
https://www.mdpi.com/1996-1073/16/13/4932/pdf?version=1687681961Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
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https://www.mdpi.com/1996-1073/16/13/4932/pdf?version=1687681961Direct OA link when available
- Concepts
-
Joule heating, Plasma, Underwater, Mechanics, Materials science, Thermal, Electrode, Voltage, Joule (programming language), Joule effect, Discharge pressure, Volume (thermodynamics), Chemistry, Electrical engineering, Composite material, Efficient energy use, Physics, Thermodynamics, Geology, Engineering, Gas compressor, Quantum mechanics, Oceanography, Physical chemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
4Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 3, 2024: 1Per-year citation counts (last 5 years)
- References (count)
-
39Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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