Supplemental Calibration of the AEDC-PWT 16-ft Transonic Tunnel Aerodynamic Test Section
Abstract
A test was conducted in the Propulsion Wind Tunnel (16T) to: (1) define the effect of plenum suction utilization on the tunnel calibration and power consumption at free-stream Mach numbers less than 0.75, (2) improve the centerline Mach number calibration at supersonic Mach numbers, (3) correlate the test section centerline Mach number with the tunnel nozzle Mach number, and (4) investigate the effect of tunnel humidity on the calibration. Data were acquired for Mach numbers from 0.6 to 1.6 at total pressures from 400 to 3,200 psfa. The calibration was conducted in the aerodynamic test section using a centerline pipe and wall pressure orifices to define the Mach number distributions. The results of an evaluation of alternate methods of calibration indicated that the current method is the most acceptable. Slightly changing the tunnel nozzle to eliminate the disturbances in the flow at supersonic Mach numbers indicated the need to investigate the entire nozzle system. Comparison of this calibration with previous calibration results indicates that a revision of the current tunnel calibration is not necessary.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1981
- Accession Number
- ADA102384
Entities
People
- M. L. Mills
Organizations
- Arnold Engineering Development Complex