Wind Tunnel Data from a Rotor Wake/Airframe Interaction Study.

Abstract

Accurate prediction and understanding of the aerodynamic interactions between a rotor and airframe are essential to the improvement of future rotorcraft. Large amounts of energy are added by the lifting rotor to an otherwise uniform free stream. The resulting wake flow interaction with the airframe has led to problems in dynamics, performance, acoustics and handling qualities. The interaction phenomena associated with a rotor/airframe in forward flight are currently under study as part of a research effort in the Rotary Wing Technology Center sponsored by the U.S. Army at Georgia Tech. The objective of this program is the systematic measurement of interaction effects and the validation of prediction codes using these measurements. This report presents the aerodynamic interaction data base that has been generated in experiments conducted in the John J. Harper 7x9-foot wind tunnel at Georgia Tech. It is hoped that these results will be useful as a guide in the development of prediction codes as well as providing a test for their validity. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1986
Accession Number
ADA171333

Entities

People

  • A. G. Brand
  • H. M. Mcmahon
  • N. M. Komerath

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Acquisition
  • Airframes
  • Coefficients
  • Data Acquisition
  • Data Processing
  • Databases
  • Drive Shafts
  • Dynamic Pressure
  • Engineering
  • Free Stream
  • Measurement
  • Microphones
  • Military Research
  • Static Pressure
  • Sting Mounts
  • Transducers
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Computational Fluid Dynamics (CFD)
  • Computational Modeling and Simulation