The European Physical Journal D

, 67:261

Hypergravity effects on glide arc plasma

  • Jiří Šperka
  • Pavel Souček
  • Jack J. W. A. Van Loon
  • Alan Dowson
  • Christian Schwarz
  • Jutta Krause
  • Gerrit Kroesen
  • Vít Kudrle
Regular Article

DOI: 10.1140/epjd/e2013-40408-7

Cite this article as:
Šperka, J., Souček, P., Van Loon, J.J.W.A. et al. Eur. Phys. J. D (2013) 67: 261. doi:10.1140/epjd/e2013-40408-7

Abstract

The behaviour of a special type of electric discharge – the gliding arc plasma – has been investigated in hypergravity (1g–18g) using the Large Diameter Centrifuge (LDC) at ESA/ESTEC. The discharge voltage and current together with the videosignal from a fast camera have been recorded during the experiment. The gliding of the arc is governed by hot gas buoyancy and by consequence, gravity. Increasing the centrifugal acceleration makes the glide arc movement substantially faster. Whereas at 1g the discharge was stationary, at 6g it glided with 7 Hz frequency and at 18g the gliding frequency was 11 Hz. We describe a simple model for the glide arc movement assuming low gas flow velocities, which is compared to our experimental results.

Keywords

Plasma Physics

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Jiří Šperka
    • 1
    • 2
  • Pavel Souček
    • 1
  • Jack J. W. A. Van Loon
    • 3
    • 4
  • Alan Dowson
    • 4
  • Christian Schwarz
    • 4
  • Jutta Krause
    • 4
  • Gerrit Kroesen
    • 5
  • Vít Kudrle
    • 1
  1. 1.Department of Physical ElectronicsMasaryk UniversityBrnoCzech Republic
  2. 2.The Central European Institute of Technology (CEITEC)Masaryk UniversityBrnoCzech Republic
  3. 3.Dutch Experiment Support Center (DESC)ACTA-VU-University and University of AmsterdamAmsterdamThe Netherlands
  4. 4.European Space Agency (ESA), ESTEC, TEC-MMGNoordwijkThe Netherlands
  5. 5.Faculty of Applied PhysicsEindhoven University of TechnologyEindhovenThe Netherlands