Accession Number : AD0757196

Title :   Upwash Interference on a Symmetrical Wing in a Rectangular Ventilated Wall Wind Tunnel: Part I. Development of Theory.

Descriptive Note : Final rept. Oct 71-May 72,

Corporate Author : ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AIR FORCE STATION TENN

Personal Author(s) : Kraft,E. M.

Report Date : MAR 1973

Pagination or Media Count : 74

Abstract : The wind tunnel boundary upwash interference on a symmetrical finite wing of arbitrary lift distribution is calculated in a rectangular test section with solid vertical walls and ventilated (porous-slotted) horizontal walls. The interference is found by applying linearized theory for a compressible medium at subsonic speed to the boundary value problem. The theory uses an image method in addition to Fourier transforms with an equivalent homogeneous boundary condition on the ventilated wall. A treatment of the far downstream end condition consistent with the Fourier transform method is presented. (Author Modified Abstract)

Descriptors :   (*SWEPTBACK WINGS, MODEL TESTS), (*WIND TUNNELS, RELIABILITY), INTERFERENCE, WIND TUNNEL MODELS, WALLS, AERODYNAMIC SLOTS, POROUS MATERIALS, SUBSONIC CHARACTERISTICS, FOURIER ANALYSIS, TRANSFORMATIONS(MATHEMATICS), MATHEMATICAL MODELS, THEORY

Subject Categories : Aerodynamics
      Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE