Accession Number:

ADA091774

Title:

Further Investigations of Adaptive-Wall Wind Tunnels

Descriptive Note:

Final rept. Aug 1978-Dec 1979

Corporate Author:

CALSPAN ADVANCED TECHNOLOGY CENTER BUFFALO NY

Report Date:

1980-10-01

Pagination or Media Count:

72.0

Abstract:

The objective of this investigation was to continue the assessment of the Calspan perforated-wall, segmented-plenum adaptive-wall wind tunnel for flows in which the tunnel walls are supercritical. An important aspect of the investigation was the development of a static-pipe measuring technique for determining the normal velocity distributions. This technique was developed to overcome the limitations on the number of flow-angle probe measurements that could be made in the Calspan tunnel. The flow about a static pipe in the presence of modelwall-induced disturbances was analyzed within the framework of slender-body theory to give the relationship between differential pressure measurements across the pipe and the steam-wise derivative of the normal velocity at the pipe centerline.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE