Interactional Aerodynamics of the Single Rotor Helicopter Configuration. Volume IIIA. Flow Angle and Velocity Wake Profiles in Low Frequency Band. Basic Investigations and Hub Variations.

Abstract

This is the first of the two sub-volumes comprising Volume III. These documents present profiles of the RMS values of the wake flow angles and velocities in the 1 omega to 2 omega range. The format is waterline on the ordinate and velocity or flow angle on the abscissa. Each graph shows a comparison of the baseline flow to the flow modified by some device or condition. This sub-volume covers build-up to baseline, baseline wake exploration and the effects of various hub caps. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1978
Accession Number
ADA061766

Entities

People

  • Philip F. Sheridan

Organizations

  • Boeing Rotorcraft Systems

Tags

DTIC Thesaurus Topics

  • Air Ejectors
  • Air Pressure
  • Aircrafts
  • Airframes
  • Coordinate Systems
  • Ejectors
  • Flow
  • Frequency
  • Frequency Bands
  • Harmonic Analysis
  • Helicopters
  • Military Research
  • Models
  • Pressure Transducers
  • United States Government
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Approximation Theory.
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