Non-Reacting Turbulent Mixing Experments. Revision 1

Abstract

Detailed measurements of pressure, temperature and gas composition in coflowing streams have been obtained for a variety of relative Mach numbers and density ratios. These measurements were aimed to provide a comprehensive data base from which compressibility corrections can be calculated for the turbulence models used in the JANNAF Standard Plume Flowfield Model (SPF). Using a short-duration testing technique, low altitude non-reacting plume flowfields were simulated in which compressible turbulent mixing of coaxial supersonic jets occurred in a preevacuated altitude chamber. A ratio of the mixing jet diameters of 13:1 was obtained using an apparatus consisting of a 3-inch exit diameter nozzle/supply within the large-scale Calspan Ludwieg Tube. Originator-supplied keywords: Turbulent mixing, Axisymmetric jets, Co-flowing jets, Supersonic jets, Turbulence modeling, Rocket exhaust plumes.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA160894

Entities

People

  • C. Padova

Organizations

  • Calspan

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Altitude
  • Boundary Layer
  • Computational Fluid Dynamics
  • Databases
  • Fluid Dynamics
  • Fluid Flow
  • Low Altitude
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Steady Flow
  • Steady State
  • Test Facilities
  • Thermal Conductivity
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow