Abstract
Measurements of shear stress, turbulence energy and other parameters were made in the impingement region of a plane two-dimensional jet confined between parallel walls. Hot wire anemometer arrays were used to examine the turbulance levels in the three directions. The object of the experiments was to make comparisons with a prediction method previously proposed. Measurements were also made in the free jet and these agreed well with the many earlier results available. In the impingement zone where the turbulence levels are very high the order of agreement is encouraging despite the uncertainties present both in the theory and the experiment. In particular, the assumption of a constant turbulence length scale in such a complex flow is not confined by the measurements.
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