INVESTIGATION OF JET BOUNDARY SIMULATION PARAMETERS FOR UNDEREXPANDED JETS IN A QUIESCENT ATMOSPHERE

Abstract

An experimental and theoretical investigation was conducted to determine the degree of jet boundary simulation obtainable for underexpanded jets exhausting into a quiescent atmosphere. Tests were conducted with nitrogen, carbon dioxide, and helium gases, and theoretical boundaries were obtained by a method-of-characteristics solution. It was determined that the method-of-characteristics solution accurately represents the experimental jet boundaries and that the matching of simulation parameters gives good boundary simulation for a wide range of jet conditions. Also a rapid, simple method for estimating jet boundary shape is developed from the method-of-characteristics results.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1968
Accession Number
AD0675211

Entities

People

  • R. D. Herron

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Atmospheres
  • Boundaries
  • Boundary Layer
  • Carbon Dioxide
  • Chemical Reactions
  • Experimental Data
  • Flow
  • Flow Visualization
  • Glow Discharges
  • Mach Number
  • Method Of Characteristics
  • Nitrogen
  • Reynolds Number
  • Simulations
  • Stagnation Pressure
  • Test Facilities

Readers

  • Combustion and Flow Dynamics.
  • Computational Modeling and Simulation