Experimental investigation of hypervelocity plasma jets generated with a coaxial arc device

Rott, M.; Artelt, C.; Höschen, T.

doi:10.1109/tmag.2004.839280

Cited by 4 publications

(5 citation statements)

References 7 publications

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“…The multilevel stepped-wall simulated inspection chamber are adopted to study the interaction properties between the plasma jet and the simulated liquid medium at the cold experiment condition based on the work of Kuo K K (Kuo et al, 1990); Kim H J (Kim & Hong, 1995); Rott M (Rott & Artelt, 2005) and so on. The expansion characteristics of Taylor cavity formed by the plasma jet on different conditions can be observed.…”

Section: Experiments Results Of the Plasma Jet Expansion In Liquidmentioning

confidence: 99%

Experimental Investigation and Numerical Simulation on Interaction Process of Plasma Jet and working Medium

Yan¹,

Zhang²,

Zhao³

et al. 2010

Numerical Simulations - Examples and Applications in Computational Fluid Dynamics

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Section: Experiments Results Of the Plasma Jet Expansion In Liquidmentioning

confidence: 99%

Experimental Investigation and Numerical Simulation on Interaction Process of Plasma Jet and working Medium

Yan¹,

Zhang²,

Zhao³

et al. 2010

Numerical Simulations - Examples and Applications in Computational Fluid Dynamics

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“…The coaxial geometry of the electrodes provides a large surface area for the arc discharge and therefore leads to rather low current densities. This design also minimises interfering ablation [4] and allows stable and highly reproducible self ignition. …”

Section: Plasma Sourcementioning

confidence: 99%

“…The inductance L plasma source is approximately 95 nH [4]. Since the resulting arc voltage U plasma represents a purely ohmic voltage the ohmic resistance may be derived from dividing the voltage waveform through the current waveform.…”

Section: Plasma-related Instrumentationmentioning

confidence: 99%

“…on the geometry of the plasma source or on the electrical values of the discharge circuit. These parameters were, however, defined within preliminary tests [4] and are not varied here.…”

Section: Process Variablesmentioning

confidence: 99%

“…Pulsed and therefore highly transient plasmas generally combine high energy [1,2] and charge densities [3,4], steep temperature gradients [5], and short residence times. Research in the field of such systems has so far mainly aimed at developing hypervelocity launchers [6,7] and particle accelerators for micrometeoroid simulation [8,9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Particle generation in pulsed plasmas

Artelt

Rott

Höschen

et al. 2008

Plasma Devices and Operations

Self Cite

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A new pulsed coaxial plasma generator (PCPG) has been developed in order to allow for investigating particle generation in the quench of a propagating jet. The related process provides an extremely transient environment which is characterised by initially high energy and charge densities, steep temperature gradients and short particle residence times. The combination of high quench rates and high charge densities, which can not be obtained in conventional reactors such as in flames or quasi stationary plasmas, provide in fact a potential for "freezing" of non-equilibrium phases and for tailoring particle characteristics by means of controlling particle-particle interactions. The pulsed plasma is characterised by means of determining the energy coupling, the charge density, the expansion behaviour, and the evolution of temperature. Particle properties such as primary particle size and aggregate structure are determined for varying process parameters, namely energy coupling, precursor injection, and ambient pressure.

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Atmospheric pressure He-air plasma jet: Breakdown process and propagation phenomenon

Begum

Laroussi

Pervez³

2013

AIP Advances

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In this paper He-discharge (plasma jet/bullet) in atmospheric pressure air and its progression phenomenon has been studied experimentally using ICCD camera, optical emission spectroscopy (OES) and calibrated dielectric probe measurements. The repetitive nanosecond pulse has applied to a plasma pencil to generate discharge in the helium gas channel. The discharge propagation speed was measured from the ICCD images. The axial electric field distribution in the plasma jet is inferred from the optical emission spectroscopic data and from the probe measurement. The correlation between the jet velocities, jet length with the pulse duration is established. It shows that the plasma jet is not isolated from the input voltage along its propagation path. The discharge propagation speed, the electron density and the local and average electric field distribution along the plasma jet axis predicted from the experimental results are in good agreement with the data predicted by numerical simulation of the streamer propagation presented in different literatures. The ionization phenomenon of the discharge predicts the key ionization parameters, such as speed, peak electric field in the front, and electron density. The maximum local electric field measured by OES is 95 kV/cm at 1.3 cm of the jet axis, and average EF measured by probe is 24 kV/cm at the same place of the jet. The average and local electron density estimated are in the order of 1011 cm-3 and it reaches to the maximum of 1012 cm-3

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Experimental investigation of hypervelocity plasma jets generated with a coaxial arc device

Cited by 4 publications

References 7 publications

Experimental Investigation and Numerical Simulation on Interaction Process of Plasma Jet and working Medium

Experimental Investigation and Numerical Simulation on Interaction Process of Plasma Jet and working Medium

Particle generation in pulsed plasmas

Atmospheric pressure He-air plasma jet: Breakdown process and propagation phenomenon

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