Accession Number : AD0764255

Title :   An Experimental Investigation of Wind Tunnel Wall Corrections and Test Limits for V/STOL Vehicles.

Descriptive Note : Final rept. 1 Jul 69-30 Jun 72,

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Rae,William H. , Jr. ; Shindo,Shojiro

Report Date : 12 JUL 1973

Pagination or Media Count : 37

Abstract : The report deals with an experimental investigation of some of the problems associated with wind tunnel testing of V/STOL type aircraft. The models used in the study were either rotors or propellers acting as a rotor. Various size and shape wind tunnel test sections were simulated by the use of inserts installed within a larger main wind tunnel test section. The study investigated the application of wind tunnel wall corrections to models with large values of downwash. A physical limit, called flow breakdown, to the size and allowable downwash for a given model-tunnel combination was also studied. (Modified author abstract)

Descriptors :   (*SHORT TAKEOFF AIRCRAFT, WIND TUNNEL MODELS), VERTICAL TAKEOFF AIRCRAFT, WIND TUNNELS, VORTICES, FLOW FIELDS, ROTOR BLADES(ROTARY WINGS), LIFT, DRAG

Subject Categories : Aerodynamics
      V/STOL

Distribution Statement : APPROVED FOR PUBLIC RELEASE