Prospective Noise Reduction by Domes on Planar Arrays. I. Theoretical Estimates for Unilayers

Abstract

The reduction of direct turbulent boundary-layer noise in a planar array by a fluid unilayer interposed between the array and the flow is assessed from theoretical considerations. The layer is composed of independent contiguous segments each of superficial dimensions large relative to the sound wave length in the interior.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
ADA073505

Entities

People

  • David Chase

Organizations

  • Control Data Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Boundaries
  • Boundary Layer
  • Elastic Waves
  • Excitation
  • Frequency
  • Human Factors Engineering
  • Layers
  • Noise Reduction
  • Sound Waves
  • Thickness
  • Turbulent Boundary Layer
  • Underwater Acoustics
  • Waves

Readers

  • Fluid Dynamics.
  • Phased Array Antenna Design.
  • Systems Analysis and Design