Airloads on Bluff Bodies, with Application to the Rotor-Induced Downloads on Tilt-Rotor Aircraft.

Abstract

The aerodynamic characteristics of airfoils with several flap configurations have been studied theoretically and experimentally in an environment that simulates a wing immersed in the downwash of a hovering rotor. Special techniques have been developed for correcting and validating the wind-tunnel data for large blockage effects, and the test results have been used to evaluate two modern computational aerodynamics codes. The combined computed and measured results show that improved flap and leading-edge configurations can be designed which will achieve large reductions in the downloads of tilt-rotor aircraft, and thereby improve their hover efficiency. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1983
Accession Number
ADA134642

Entities

People

  • B. Maskew
  • G. H. Laub
  • M. D. Maisel
  • Ph. Spalart
  • W. J. Mccroskey

Organizations

  • Ames Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Forces
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Base Pressure
  • Boundary Layer
  • Computational Science
  • Flow Fields
  • Leading Edges
  • Measurement
  • Pressure Distribution
  • Reynolds Number
  • Tilt Rotor Aircraft
  • Trailing Edges
  • Two Dimensional
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerospace Engineering
  • Fluid Dynamics.