Numerical simulation of gap length influence on energy deposition in spark discharge

The aim of the work is to study the influence of the length of the spark gap on energy input into the discharge channel during its gas-dynamic expansion. Methodology. The research is carried out by numerical modeling of the process of spark discharge development at variable values of the discharge g...

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Autores principales:	K.V. Korytchenko, O.V. Shypul, D. Samoilenko, I.S. Varshamova, А.A. Lisniak, S.V. Harbuz, K.M. Ostapov
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2021
Materias:	spark discharge energy deposition gap length influence Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/854af2a70c374f18b2e274b639d9323f
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spelling	oai:doaj.org-article:854af2a70c374f18b2e274b639d9323f2021-12-02T16:27:39ZNumerical simulation of gap length influence on energy deposition in spark discharge10.20998/2074-272X.2021.1.062074-272X2309-3404https://doaj.org/article/854af2a70c374f18b2e274b639d9323f2021-02-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/225160/225156https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404The aim of the work is to study the influence of the length of the spark gap on energy input into the discharge channel during its gas-dynamic expansion. Methodology. The research is carried out by numerical modeling of the process of spark discharge development at variable values of the discharge gap length and at invariable other discharge conditions. The length of the gap was set in the range from 1 mm to 20 mm. The study was conducted using a numerical model of spark development, which takes into account the processes of nonstationary gas-dynamic expansion of the spark channel, the transient process in the electric circuit, nonequilibrium chemical processes, gas ionization, heat transfer and electrons thermal conductivity. The simulation was performed in atmospheric pressure nitrogen. The calculation was performed for various parameters of the RLC circuit, such as capacitance, inductance, resistance and voltage across the capacitor. Results. The study evaluates the influence of the spark length on the discharge current, the resistance of the spark channel, the energy deposited in the spark channel, and the distribution of thermodynamic parameters of the gas during the development of the spark discharge. It is confirmed that increasing the length of the gap increases the resistance of the spark. The deviation from the linear relationship between the deposited energy or the radiated energy and the length of the spark gap is estimated. Scientific novelty. A linear relationship between the gap length and the deposited energy is revealed when the total energy is above tens of Joules. Deviations from the linear dependence were detected in the discharge circuit when the total energy is below one of Joules. Practical value. The research results allow predicting the effect of the spark gap length on the energy input into the discharge channel under conditions of a slight change in the discharge current. In the conditions of essential change of amplitude of discharge current it is expedient to apply numerical researches for specification of changes in the energy deposited into a spark discharge.K.V. KorytchenkoO.V. ShypulD. SamoilenkoI.S. VarshamovaА.A. LisniakS.V. HarbuzK.M. OstapovNational Technical University "Kharkiv Polytechnic Institute"articlespark dischargeenergy depositiongap length influenceElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 1, Pp 35-43 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	spark discharge energy deposition gap length influence Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	spark discharge energy deposition gap length influence Electrical engineering. Electronics. Nuclear engineering TK1-9971 K.V. Korytchenko O.V. Shypul D. Samoilenko I.S. Varshamova А.A. Lisniak S.V. Harbuz K.M. Ostapov Numerical simulation of gap length influence on energy deposition in spark discharge
description	The aim of the work is to study the influence of the length of the spark gap on energy input into the discharge channel during its gas-dynamic expansion. Methodology. The research is carried out by numerical modeling of the process of spark discharge development at variable values of the discharge gap length and at invariable other discharge conditions. The length of the gap was set in the range from 1 mm to 20 mm. The study was conducted using a numerical model of spark development, which takes into account the processes of nonstationary gas-dynamic expansion of the spark channel, the transient process in the electric circuit, nonequilibrium chemical processes, gas ionization, heat transfer and electrons thermal conductivity. The simulation was performed in atmospheric pressure nitrogen. The calculation was performed for various parameters of the RLC circuit, such as capacitance, inductance, resistance and voltage across the capacitor. Results. The study evaluates the influence of the spark length on the discharge current, the resistance of the spark channel, the energy deposited in the spark channel, and the distribution of thermodynamic parameters of the gas during the development of the spark discharge. It is confirmed that increasing the length of the gap increases the resistance of the spark. The deviation from the linear relationship between the deposited energy or the radiated energy and the length of the spark gap is estimated. Scientific novelty. A linear relationship between the gap length and the deposited energy is revealed when the total energy is above tens of Joules. Deviations from the linear dependence were detected in the discharge circuit when the total energy is below one of Joules. Practical value. The research results allow predicting the effect of the spark gap length on the energy input into the discharge channel under conditions of a slight change in the discharge current. In the conditions of essential change of amplitude of discharge current it is expedient to apply numerical researches for specification of changes in the energy deposited into a spark discharge.
format	article
author	K.V. Korytchenko O.V. Shypul D. Samoilenko I.S. Varshamova А.A. Lisniak S.V. Harbuz K.M. Ostapov
author_facet	K.V. Korytchenko O.V. Shypul D. Samoilenko I.S. Varshamova А.A. Lisniak S.V. Harbuz K.M. Ostapov
author_sort	K.V. Korytchenko
title	Numerical simulation of gap length influence on energy deposition in spark discharge
title_short	Numerical simulation of gap length influence on energy deposition in spark discharge
title_full	Numerical simulation of gap length influence on energy deposition in spark discharge
title_fullStr	Numerical simulation of gap length influence on energy deposition in spark discharge
title_full_unstemmed	Numerical simulation of gap length influence on energy deposition in spark discharge
title_sort	numerical simulation of gap length influence on energy deposition in spark discharge
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2021
url	https://doaj.org/article/854af2a70c374f18b2e274b639d9323f
work_keys_str_mv	AT kvkorytchenko numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge AT ovshypul numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge AT dsamoilenko numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge AT isvarshamova numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge AT aalisniak numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge AT svharbuz numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge AT kmostapov numericalsimulationofgaplengthinfluenceonenergydepositioninsparkdischarge
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Numerical simulation of gap length influence on energy deposition in spark discharge

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