Accession Number:

ADA053790

Title:

Measurements in the Turbulent Boundary Layer at Constant Pressure in Subsonic and Supersonic Flow. Part I. Mean Flow

Descriptive Note:

Final rept. May 1975-Feb 1978

Corporate Author:

CALIFORNIA INST OF TECH PASADENA JET PROPULSION LAB

Report Date:

1978-05-01

Pagination or Media Count:

218.0

Abstract:

Experiments have been carried out to test the accuracy of laser- Doppler instrumentation for measurement of Reynolds stresses in turbulent boundary layers in supersonic flow. Two facilities were used to study flow at constant pressure. In one facility, data were obtained on a flat plate at M sub e 0.1, with Re sub Theta up to 8,000. In the other, data were obtained on an adiabatic nozzle wall at M sub e 0.6, 0.8, 1.0, 1.3, and 2.2, with the Re sub Theta 23,000 and 40,000. This report is limited to a description of the mean flow as observed using Pitot-tube, Preston-tube, and floating-element instrumentation. Emphasis is on the use of similarity laws with Van Driest scaling and on the inference of the shearing-stress profile and the normal velocity component from the equations of mean motion. The experimental data are tabulated.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE