Research on Helicopter Rotor Noise.

Abstract

This report summarizes the results of studies in the following areas: (1) applications of generalized functions to aeroacoustics and aerodynamic problems, (2) bounds on thickness and loading noise of rotating blades and the effects of blade sweep on reduction of the noise of rotating blades, (3) study of nonlinear effects relevant to the rotor noise problem and (4) computational aspects of high speed rotor noise. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1979
Accession Number
ADA075259

Entities

People

  • F. Farassat
  • H. Liebowitz

Organizations

  • George Washington University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeroacoustics
  • Aircrafts
  • Differential Equations
  • Engineering
  • Equations
  • Experimental Data
  • Far Field
  • Flow
  • Friction
  • Geometry
  • Helicopter Rotors
  • Integral Equations
  • Noise
  • Pressure Distribution
  • Pressure Signatures
  • Skin Friction
  • Transonic Flow

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)
  • Radar Systems Engineering.