An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disc Loading V/STOL Model

Abstract

The investigation reported herein is the experimental portion of a unified theoretical and experimental search for a slotted wind tunnel wall configuration with minimal interference for conventional and V/STOL models. It is shown that theory and experiment are in excellent agreement for the classical case provided an appropriate expression is used to relate the wall geometry to the boundary condition. Classical data correction equations are not appropriate for the V/STOL case, however. An additional term, not predicted by theory, is needed to account for changes in the jet wake. Geometric parameters which influence the wall interference quantities are indicated. Wall configurations are shown which will produce interference-free force data to a jet-to-free- stream velocity ratio of 4.5.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0723294

Entities

People

  • T. W. Binion Jr.

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Boundary Layer
  • Dynamic Pressure
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Free Stream
  • Geometry
  • Lifting Bodies
  • Measurement
  • Pressure Measurement
  • Short Takeoff Aircraft
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Calculus or Mathematical Analysis
  • Fluid Dynamics.