Influence of gas flow direction on plasma propagation in a circularly bent flexible dielectric tube of different inner diameters DOI Creative Commons
Asma Begum, Md Readul Mahmud

AIP Advances, Journal Year: 2025, Volume and Issue: 15(5)

Published: May 1, 2025

This study investigates the ignition of non-thermal atmospheric pressure plasma in a 110 cm long, flexible, circularly bent dielectric tube with inner diameters 4, 8, and 10 mm. Helium feed gas was introduced at one end exited from other, high-voltage (HV) electrode positioned tube’s midpoint. Discharge expansion on both sides HV analyzed ground placed 50 away electrode. Image analysis revealed that discharge originated surface, constricted along length expanded The flow direction (GFD) exceeded against GFD. validated by generating using two distinct power supplies. increased applied voltage decreased diameter. electric force is dominant near source, while dynamics are far source. current velocity were nearly identical but greater distances sides. initially then length. total GFD higher than those it, resulting longer For supply off state, rate (GFR), for no off-voltage GFR up to certain velocity, attributed relaxation time linked duration.

Language: Английский

Influence of gas flow direction on plasma propagation in a circularly bent flexible dielectric tube of different inner diameters DOI Creative Commons
Asma Begum, Md Readul Mahmud

AIP Advances, Journal Year: 2025, Volume and Issue: 15(5)

Published: May 1, 2025

This study investigates the ignition of non-thermal atmospheric pressure plasma in a 110 cm long, flexible, circularly bent dielectric tube with inner diameters 4, 8, and 10 mm. Helium feed gas was introduced at one end exited from other, high-voltage (HV) electrode positioned tube’s midpoint. Discharge expansion on both sides HV analyzed ground placed 50 away electrode. Image analysis revealed that discharge originated surface, constricted along length expanded The flow direction (GFD) exceeded against GFD. validated by generating using two distinct power supplies. increased applied voltage decreased diameter. electric force is dominant near source, while dynamics are far source. current velocity were nearly identical but greater distances sides. initially then length. total GFD higher than those it, resulting longer For supply off state, rate (GFR), for no off-voltage GFR up to certain velocity, attributed relaxation time linked duration.

Language: Английский

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