STRUCTURAL FEATURES OF THE PLANE TURBULENT JET

An experimental investigation of a two-dimensional turbulent jet in a quiescent environment has been carried out to determine the structural characteristics of the outer, intermittent turbulent motion. An overall picture of this motion was deduced from the results which indicate that, on the average, the turbulent bulges are of the same order of magnitude in the three coordinate directions and are tilted backward at an angle of approximately 26° with respect to the lateral axis but have no spanwise yaw. Furthermore, it was found that there is no periodicity associated with the motion and that no correlation exists between bulges on opposite sides of the jet center line. © 1979 American Institute of Physics.