The European Physical Journal D

, 67:261

Hypergravity effects on glide arc plasma

Authors

    • Department of Physical ElectronicsMasaryk University
    • The Central European Institute of Technology (CEITEC)Masaryk University
  • Pavel Souček
    • Department of Physical ElectronicsMasaryk University
  • Jack J. W. A. Van Loon
    • Dutch Experiment Support Center (DESC)ACTA-VU-University and University of Amsterdam
    • European Space Agency (ESA), ESTEC, TEC-MMG
  • Alan Dowson
    • European Space Agency (ESA), ESTEC, TEC-MMG
  • Christian Schwarz
    • European Space Agency (ESA), ESTEC, TEC-MMG
  • Jutta Krause
    • European Space Agency (ESA), ESTEC, TEC-MMG
  • Gerrit Kroesen
    • Faculty of Applied PhysicsEindhoven University of Technology
  • Vít Kudrle
    • Department of Physical ElectronicsMasaryk University
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