Accession Number:

AD0851575

Title:

Reduction of Wall Interference Effects in the AEDC-PWT 1-FT Transonic Tunnel with Variable Perforated Walls

Descriptive Note:

Final rept.

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1969-05-01

Pagination or Media Count:

58.0

Abstract:

An experimental investigation was conducted in the 1-ft transonic tunnel to assess the transonic wave cancellation performance of six variable porosity, test section wall designs. The wall interference effects were detected utilizing a 20-deg cone-cylinder static pressure model of 1-percent blockage. The variable wall porosity designs incorporated a sliding cutoff plate with hole geometry identical to a fixed airside plate. Upstream movement of the sliding plates for decreasing porosity provided a test section boundary which successfully eliminated wave reflection wall interference throughout most of the transonic range.

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE