Abstract
Simultaneous measurements of instantaneous velocity and concentration fields were performed using digital particle tracking velocimetry and planar laser- induced fluorescence for a turbulent jet at a Reynolds number of 3000. The measurements of mean velocity, turbulent stresses, mean concentration, concentration variance, and turbulent flux of tracer all collapse onto self-similar profiles in the far field of the jet. The measurements showed excellent agreement with previous point velocity and concentration measurements. It is concluded that the system is an effective means of measuring the velocity and concentration distributions and turbulent characteristics.
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Received: 7 July 1999/Accepted: 9 February 2000
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Webster, D., Roberts, P. & Ra'ad, L. Simultaneous DPTV/PLIF measurements of a turbulent jet. Experiments in Fluids 30, 65–72 (2001). https://doi.org/10.1007/s003480000137
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DOI: https://doi.org/10.1007/s003480000137