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Flow Characteristics Of A 40-Inch Wind Tunnel At Mach Numbers 1.5 To 6

Report Number: AEDC TDR 62-130
Author: Coats, Jack D.
Corporate Author: Arnold Engineering Development Center Arnold Air Force Station Tenn
Laboratory: Arnold Engineering Development Center
Date of Publication: 1962-06
Pages: 37
Contract: AF 40(600)-800
Project: None Given
AD Number: AD0277289

The flexible steel plate which forms the lower nozzle wall of the 40-in. Supersonic Tunnel of the von Karman Gas Dynamics Facility was damaged in October 1961. A brief description of the damage and repair of the plate is presented with flow characteristics obtained during a calibration program conducted after completion of the repairs. The calibration showed that the uniformity of the test-section flow characteristics was not adversely affected by the repair which included the use of a pattern of bolt heads protruding above the surface of the plate in the subsonic region of the nozzle.

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