FLUCTUATING INFRARED RADIATION FROM HOT JETS, BOUNDARY LAYERS AND SHEAR LAYERS.

Abstract

Four aspects of the near field infrared background noise problem have been investigated: (1) a semi -empirical theory for predicting the levels and spectral distribution of infrared radiation fluctuations from an optically thin hot turbulent flow has been developed, (2) an experimental program has been completed and has confirmed the theory developed by comparing predictions of the broad band rms radiation and spectral radiation with radiometric measurements, (3) a series of flight-regime charts have been derived that show the spectral distribution of the near field radiation, and (4) the dependence of the background noise upon the system optical field has been derived. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1966
Accession Number
AD0632694

Entities

People

  • James Stark Draper

Tags

DTIC Thesaurus Topics

  • Background Noise
  • Boundary Layer
  • Electromagnetic Radiation
  • Infrared Radiation
  • Layers
  • Near Field
  • Noise
  • Radiation
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.