Accession Number : AD0754224

Title :   Velocity Irregularities in the Near Field of High Aspect Ratio Turbulent Jets,

Corporate Author : SYSTEMS RESEARCH LABS INC DAYTON OHIO

Personal Author(s) : Eastlake,Charles N. , II

Report Date : NOV 1972

Pagination or Media Count : 36

Abstract : An extensive investigation has been made to determine the cause of irregularities in the near field velocity profiles of turbulent jets issuing from rectangular openings of high aspect ratio. These irregularities are seen to persist for about two exit major diameters downstream. Various means of reducing the nonuniformities are documented, but it does not seem possible to produce completely smooth profiles from orifices or nozzles of this small scale (minor diameter = .060 inch) without manufacturing processes beyond normal tolerances. (Author)

Descriptors :   (*JET MIXING FLOW, ANOMALIES), VELOCITY, TURBULENCE, TWO DIMENSIONAL FLOW, PRESSURE, ORIFICES, THRUST AUGMENTATION

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE