Special Opportunities in Helicopter Aerodynamics.

Abstract

Aerodynamic research relating to modern helicopters includes the study of three-dimensional, unsteady, nonlinear flow fields. A selective review is made of some of the phenomenon that hamper the development of satisfactory engineering prediction techniques, but which provides a rich source of research opportunities: flow separations, compressibility effects, complex vortical wakes, and aerodynamic interference between components. Several examples of work in progress are given, including dynamic stall alleviation, the development of computational methods for transonic flow, rotor-wake predictions, and blade-vortex interactions. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1983
Accession Number
ADA139583

Entities

People

  • W. J. Mccroskey

Organizations

  • Ames Research Center

Tags

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aircraft Industry
  • Aircrafts
  • Airframes
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Fixed Wing Aircraft
  • Flow Fields
  • Fluid Dynamics
  • Helicopter Rotors
  • Mach Number
  • Pressure Distribution
  • Three Dimensional
  • Tilt Rotor Aircraft
  • Two Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Aerospace Engineering
  • Fluid Mechanics and Fluid Dynamics.
  • Systems Analysis and Design