Turbulent Boundary Layer Wall Pressure Fluctuation Using Water Injection

Abstract

This technical memorandum consists of the text and visual graphics of an invited paper to be presented in December 1986 at the Forum on Flow Induced Noise and Vibrations sponsored by the Noise Control and Acoustics division of the American Society of Mechanical Engineers (ASME). This paper is a status report of ongoing experiments in the Naval Underwater Systems Center (NUSC) acoustically quiet water tunnel located in New London, CT. The objective of these experiments is to determine the utility of cold (ambient) water injection into a boundary layer to reduce the intensity of turbulent boundary layer wall pressure fluctuations (TBLPF) or as it's commonly called flow noise. Future studies will characterize the effect of heated water injection on TBLPF. The current experiments consist of turbulent boundary layer wall pressure fluctuation measurements downstream of a perforated steel plate through which ambient temperature water is injected into the turbulent boundary layer.

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Document Details

Document Type
Technical Report
Publication Date
Oct 08, 1986
Accession Number
ADA636291

Entities

People

  • E. Payne
  • Howard H. Schloemer

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustics
  • Ball Valves
  • Boundaries
  • Boundary Layer
  • Flow Noise
  • Free Stream
  • Frequency
  • Frequency Bands
  • Frequency Shift
  • Layers
  • Materials
  • Measurement
  • Noise
  • Phase Velocity
  • Test Facilities
  • Turbulent Boundary Layer
  • Water Tunnels

Fields of Study

  • Physics

Readers

  • Academic Conference Management
  • Acoustics.
  • Fluid Mechanics and Fluid Dynamics.