Effect of DC magnetic field on atmospheric pressure argon plasma jet

In this work, external DC magnetic field effect on the atmospheric pressure plasma jet has been investigated, experimentally. The magnetic field has been produced using a Helmholtz coil configuration. It has been applied parallel and transverse to the jet flow. The strength of the DC magnetic field...

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Veröffentlicht in:Indian journal of physics 2015-05, Vol.89 (5), p.495-502
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description In this work, external DC magnetic field effect on the atmospheric pressure plasma jet has been investigated, experimentally. The magnetic field has been produced using a Helmholtz coil configuration. It has been applied parallel and transverse to the jet flow. The strength of the DC magnetic field is 0–0.28 and 0–0.57 Tesla between the two coils in parallel and transverse applications, respectively. It has been shown that the plasma gas flow plays the main role in magneto-active collision-dominated plasma. The effect of plasma fluid velocity on the jet emission has been discussed, qualitatively. It has been observed that the external DC magnetic field has different trends in parallel and transverse applications. The measurements reveal that the plasma jet irradiance increases in parallel field, while it decreases in transverse field. The former has been attributed to increasing plasma number density and the latter to loss of plasma species that reduces the magneto-plasma jet irradiance and in turn shrinks plasma jet number density. As a result, the plasma fluid velocity is responsible for such trends though the magneto-active plasma remains isotropic.
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subjects Astrophysics and Astroparticles
Atmospheric pressure
Barometric pressure
Coiling
Density
Fluid dynamics
Fluid flow
Fluids
Magnetic fields
Original Paper
Physics
Physics and Astronomy
Plasma physics
title Effect of DC magnetic field on atmospheric pressure argon plasma jet
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