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Related Experiment Videos

Rotating hexagonal pattern in a dielectric barrier discharge system.

A L Zanin1, E L Gurevich, A S Moskalenko

  • 1Institut für Angewandte Physik, Corrensstr. 2/4, D-48149 Münster, Germany.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 5, 2004
PubMed
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Researchers observed a rotating hexagonal pattern in a gas discharge cell. This pattern of current filaments rotates rigidly, with gas temperature influencing its speed.

Area of Science:

  • Plasma physics
  • Nonlinear dynamics
  • Soft matter physics

Background:

  • Dissipative systems can exhibit complex spatio-temporal patterns.
  • Gas discharges are known to form various structures, including filamentary patterns.

Purpose of the Study:

  • To experimentally observe and characterize a rotating hexagonal pattern in a gas discharge.
  • To investigate the dynamics and influencing factors of this rotating pattern.

Main Methods:

  • Experimental setup using a planar dielectric barrier gas-discharge cell.
  • Observation and analysis of current filaments forming a hexagonal pattern.
  • Study of pattern dynamics, rotational velocity, and temperature effects.

Main Results:

Related Experiment Videos

  • Experimental observation of a rotating hexagonal pattern in a continuous dissipative medium.
  • The pattern consists of current filaments rotating as a rigid body.
  • The rotating hexagonal pattern exhibits lower symmetry than stationary patterns.
  • Gas temperature significantly influences the rotational velocity of the hexagons.

Conclusions:

  • A novel rotating hexagonal pattern was experimentally demonstrated in a gas discharge.
  • The dynamics of this pattern are influenced by gas temperature.
  • This finding contributes to understanding pattern formation in dissipative systems.