PLANAR TURBULENT JET.

This investigation was undertaken in order to extend the available information on the two-dimensional self-preserving jet. Results of hot-wire measurements in a plane incompressible jet are reported. The flow was found to be self-preserving beyond x/d greater than 40 and measurements were made up to x/d equals 120. The quantities measured include mean velocities, turbulence intensities, and third- and fourth-order terms, as well as two-point correlations and the intermittency factor. Conditional sampling techniques were used to obtain exclusively data within the turbulent zone of the jet. The results are compared with previous investigations.