Condensation Scaling Laws for Reservoir and Nozzle Parameters and Gas Species as Determined by Laser Scattering Experiments

Abstract

A study of the condensation of gases in expansion flow fields has been performed using laser Rayleigh scattering with the goal of determining the dependence of the spatial location of onset and subsequent condensate growth with gas reservoir conditions, gas source parameters, and gaseous species. Sonic orifice and conical nozzle expansions of N2 were studied for the range of reservoir pressure values from 0.26 to 10.2 atm at a nominal reservoir temperature of 285K. The conical nozzle expansions included the nozzle half angles of 5.60, 9.0, and 14.5 deg. Finally, sonic orifice expansions produced by sources of two different diameters were investigated for flow fields of Ar, N2, O2, and CO.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA029733

Entities

People

  • James W. Lewis
  • W. D. Williams

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Condensation
  • Conical Nozzles
  • Flow
  • Flow Fields
  • Gas Dynamics
  • Government Procurement
  • Governments
  • Measurement
  • New York
  • Power
  • Rayleigh Scattering
  • Reservoirs
  • Scaling Laws
  • Scattering
  • Three Dimensional
  • United States

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers