Fundamental Study of Jet Noise Generation and Suppression. Volume I.

Abstract

THE FUNDAMENTAL ASPECTS OF JET NOISE GENERATION AND SUPPRESSION ARE EXAMINED AND EVALUATED. Initially, the basic equations of acoustics and fluid dynamics are considered with respect to the usual simplifying assumptions; the non-linear characteristics that lead to increased generality are emphasized. The Lighthill theory of subsonic jet stream noise and theories of supersonic jet stream noise are studied and extended. An analytical representation for the sound field surrounding a jet is provided which yields a solution giving some insight to noise generating mechanisms. Finally, a general review and analysis is provided of the experimental studies of others concerning jet noise generation and suppression. Volume I contains the technical details and Volume II is a bibliography. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1960
Accession Number
AD0264919

Entities

People

  • W.c. Sperry

Organizations

  • IIT Research Institute

Tags

DTIC Thesaurus Topics

  • Acoustics
  • Bibliographies
  • Computational Fluid Dynamics
  • Computational Science
  • Demographic Cohorts
  • Dynamics
  • Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Jet Streams
  • Large Eddy Simulation
  • Mechanics
  • Physics
  • Turbulence

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics