Simultaneous DPTV/PLIF measurements of a turbulent jet

Simultaneous measurements of instantaneous velocity and concentration field s were performed using digital particle tracking velocimetry and planar las er-induced fluorescence for a turbulent jet at a Reynolds number of 3000. T he measurements of mean velocity, turbulent stresses, mean concentration, c oncentration variance, and turbulent flux of tracer all collapse onto selfs imilar profiles in the far field of the jet. The measurements showed excell ent agreement with previous point velocity and concentration measurements. It is concluded that the system is an effective means of measuring the velo city and concentration distributions and turbulent characteristics.