Evidence of Self-Induced Stark Lines in Turbulent Hypersonic Argon Plasmas

ORAL

Abstract

Recent experimental evidence suggests that turbulence is influenced by external electromagnetic fields. Localized magnetic fields might also distort turbulent systems. Using a high-speed spectrograph with an echelle grating and a dual order prism attached to a CCD, we confirm the existence of localized self-induced stark effect lines in argon plasmas produced by the arc-driven shock tube. These Stark lines are treated as a byproduct of a self-induced magnetic field. This diagnostic identifying the lines performs high-speed spatial scans of 160nm in range of up to 20 microseconds allowing for more defined results for analysis. In this talk the diagnostic of the system will be presented.

Authors

  • Marquita Scott

    Florida A\&M University

  • James Titus

    Florida A\&M University

  • Alonzo Alexander

    Florida A\&M University

  • Kyron Williams

    Florida A\&M University

  • Joseph Johnson

    Florida A\&M University