Accession Number:

ADA021348

Title:

Comparison of Two- and Three-Dimensional Transonic Tests Made in Various Large Wind Tunnels

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

• Vaucheret, Xavier
• Bazin, Maurice
• Armand, Claude

Report Date:

1976-02-10

Pagination or Media Count:

42.0

Abstract:

A critical study is reported of testing conditions at transonic speeds and of the validity of the data obtained in various Wind-Tunnels. In two dimensional flow, two models of NACA 0012 and supercritical profiles have been tested as well as three homothetical profiles of NACA 0012. In three dimensional flow, four homothetical models of a typical transport aircraft were successively tested in twelve transonic tunnels commonly used for development tests in various countries. The data are compared in a broad range of Reynolds number 0.3 to 7 millions between Mach number 0.7 and 0.96.

Descriptors:

• *WIND TUNNEL TESTS
• *TRANSONIC CHARACTERISTICS
• AIRCRAFT
• VALIDATION
• TEST METHODS
• DATA ACQUISITION
• TWO DIMENSIONAL FLOW
• THREE DIMENSIONAL FLOW
• TRANSLATIONS
• AIRFOILS
• HELICOPTERS
• FRANCE

Subject Categories:

• Aerodynamics
• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE