We have studied the turbulent mixing characteristics of 20 micron oil droplets in a turbulent water jet flow. For this, we have combined two measurement techniques simultaneously, i.e. PIV, in which two velocity components are detected, and droplet counting, in which the droplet concentration is determined. From the instantaneous results the turbulent fluxes are obtained. We find that all flow characteristics can be expressed in self-similar coordinates. We compare the results with those found for mixing of a passive scalar (using LIF), and we conclude that at low droplet concentration the results are identical within measuring accuracy.
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