Accession Number:

ADA024980

Title:

Some Supersonic Wind Tunnel Nozzle Boundary Layer Characteristics.

Descriptive Note:

Final rept.,

Corporate Author:

BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1976-04-01

Pagination or Media Count:

28.0

Abstract:

Sidewall and nozzle wall boundary layer profile parameters have been determined by a least-squares fit of a law of the wall -- law of the wake turbulent boundary layer equation to a number of experimental observations including some recent data from the BRL Supersonic Wind Tunnel No. 1. The parameters include velocity scale, thickness, wake and wall region parameters. Quantitative comparisons have been made between boundary layer measurements in the BRL tunnel and other facilities. Variation of Mach number is found to effect the sidewall wake region considerably more than it effects the nozzle wall boundary layer and this is believed to be related to the differences in the upstream history of the two layers. Author

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE