Mixing in Shear Coaxial Jets with and without Acoustics (Briefing Charts)

Abstract

Statement of Need: Modern rockets operate at supercritical pressures with respect to the propellants. Need to understand mixing and combustion beyond liquid, gas states. Shear coaxial injectors are a common choice for cryogenic liquid rocket engines. Interactions of transverse acoustics with injector s own modes and mixing needs to be understood for combustion instability. Need to understand differences in response to pressure and velocity nodes. Understand what non-dimensional numbers capture the mixing of typical injectors. Characterize how geometry affects mixing.

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Document Details

Document Type
Technical Report
Publication Date
May 21, 2012
Accession Number
ADA617063

Entities

People

  • Ann Karagozian
  • Douglas G. Talley
  • Ivett Leyva
  • Jeffrey Graham
  • Juan Rodriguez
  • Sophonias Teshome

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • C4I
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Frequencies
  • Acoustic Waves
  • Acoustics
  • Air Force Research Laboratories
  • Chambers
  • Combustion
  • Combustion Chambers
  • Creep
  • Decomposition
  • Engineering
  • Engines
  • Frequency
  • Geometry
  • Heat Transfer
  • Modal Analysis
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Rocket Propulsion.
  • Systems Analysis and Design