Accession Number:

AD0425448

Title:

THE VELOCITY, PRESSURE, AND CENTERLINE CURVATURE IN A THIN TURBULENT JET SEPARATING TWO REGIONS OF DIFFERENT PRESSURE,

Descriptive Note:

Corporate Author:

PNEUMO DYNAMICS CORP BETHESDA MD

Personal Author(s):

Report Date:

1963-01-01

Pagination or Media Count:

31.0

Abstract:

On he basis of the usual mixing-length concept, the analysis of a fully turbulent, incompressible, two-dimensional thin jet was extended to the case where the jet separates two regions of significant but constant pressure difference. The jet centerline now assumes a curved shape which must be determined, as must the pressure and velocity distributions within the jet. The jet momentum flux varies with the distance from the origin, as does the kinematic eddy viscosity. The solution is found by expressing the variables as series in ascending powers of a non-dimensional downstream distance from the nozzle. Experimental results are needed to determine the additional numerical parameters which were introduced to describe the streamwise variation of the eddy viscosity coefficient. A set of universal functions, however, may be computed by absorbing these parameters in a transformation which amounts to a suitable distortion of the downstream distance. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE