Accession Number:

AD0255763

Title:

MEASUREMENT OF THE PRESSURE FLUCTUATIONS IN THE TEST SECTION OF THE 16-FOOT TRANSONIC CIRCUIT IN THE FREQUENCY RANGE FROM 5 TO 1000 CPS

Descriptive Note:

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN

Personal Author(s):

• Chevalier, H. L.
• Todd, H. E.

Report Date:

1961-05-01

Pagination or Media Count:

32.0

Abstract:

An investigation was conducted in the 16-Foot Transonic Circuit of the Propulsion Wind Tunnel Facility PWT to determine the inherent pressure fluctuations in the test section. Test results indicate that these pressure fluctuations are well within one percent of the free-stream dynamic pressure except at Mach numbers near 0.7. The relatively larger fluctuations near Mach Number 0.7 result from a higher power spectral density in the 500 to 700 cps frequency range.

Descriptors:

• *AERODYNAMIC CONFIGURATIONS
• *TEST FACILITIES
• *TRANSONIC WIND TUNNELS
• MEASUREMENT
• PRESSURE
• AERODYNAMIC CHARACTERISTICS
• INSTRUMENTATION
• TRANSONIC CHARACTERISTICS
• WIND TUNNELS
• ACOUSTICS
• TRANSDUCERS
• OGIVES
• WINGS
• WEDGES

Subject Categories:

• Test Facilities, Equipment and Methods
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE