Accession Number:

AD0847945

Title:

Turbulent Plane Jet According to a Simplified Statistical Theory,

Descriptive Note:

Corporate Author:

AEROSPACE CORP SAN BERNARDINO CA SAN BERNARDINO OPERATIONS

Personal Author(s):

• Chung, Paul M.

Report Date:

1969-01-20

Pagination or Media Count:

37.0

Abstract:

The Reynolds stress and turbulence energy profiles have been obtained for the turbulent plane jet by the use of a simplified statistical theory. The results are compared with the available recent experimental data. The comparison showed that the present results agree satisfactorily with the experiments. It was also shown from the present governing equations that the plane jet is self preserving only approximately for all large but finite values of the axial distance measured from the jet outlet. The molecular viscous effect, which is confined to the region where the second derivatives of the mean velocity and other turbulence quantities are very large, prohibits the complete self-preservation. It was shown also that the flow approaches the self-preservation more closely as the axial distance is increased. The above mentioned phenomena have been observed in the existing experimental results. Author

Descriptors:

• *JET FLOW
• TURBULENCE
• REENTRY VEHICLES
• WAKE
• STATISTICAL ANALYSIS
• RADAR

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE