An IR-camera based particle-tracking technique to measure
        free-surface velocity in liquid metal systems
      
Authors: M. Hvasta, E. Kolemen, A. Fisher
    
Abstract: Measuring free-surface liquid metal flow
      velocity is challenging to do in a reliable and accurate
      manner.  This paper presents a non-invasive,
      easily-calibrated method of measuring the surface velocities of
      open-channel liquid metal flows using an IR camera.  Unlike
      other spatially-limited methods, this IR camera particle tracking
      technique provides full field-of-view data that can be used to
      better understand open-channel flows and determine surface
      boundary conditions.  This method could be implemented and
      automated for a wide range of liquid metal experiments, even if
      they operate at high-temperature or within strong magnetic fields.
      
      
    
Submitted to: Review of Scientific Instruments
 Download PPPL-5286 (pdf
      2.3 MB 7 pp) 
      _________________________________________________________________________________________________