Military Tactical Aircraft Engine Noise Matching to Infrared Signatures

Abstract

This report builds on theoretical analysis of jet engine infrared signatures and their potential relationships to jet engine acoustic emissions in order to identify the region of a jet engine plume most likely to emit both in temporal infrared and in acoustic domains. As a means of verifying initial assessments that infrared and acoustic emissions are connected via physics-based mechanisms, a field campaign to collect relevant data was carried out with a bank of infrared instruments imaging a T700 turboshaft engine undergoing routine operational testing, while microphones collected simultaneous acoustic data.

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Document Details

Document Type
Technical Report
Publication Date
Dec 16, 2016
Accession Number
AD1030178

Entities

People

  • Andy Draudt
  • Christine Smith
  • Kimberly R. Knobel
  • Philip Cunio
  • Reed A. Weber

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Airframes
  • Computational Fluid Dynamics
  • Department Of Defense
  • Detection
  • Detectors
  • Energy Transfer
  • Fluid Dynamics
  • Fluid Flow
  • Jet Engine Noise
  • Jet Engines
  • Test Facilities
  • Turbine Components
  • Turbines
  • Turbofan Engines
  • Turbojet Engines
  • Turboshaft Engines
  • Turbulent Mixing

Readers

  • Acoustical Oceanography.
  • Aerospace Engineering
  • Pulsed Power and Plasma Physics.