Drop/Gas Interactions of Dense Sprays

Abstract

Turbulence generation and secondary drop breakup were studied. Turbulence generation is due to the motion of high-speed dispersed phases through continuous phases. Secondary drop breakup intrinsically follows primary liquid breakup in sprays. Measurements showed that flows caused by turbulence generation consisted of dispersed phase wakes (involving laminar-like turbulent wakes) surrounded by a turbulent interwake region involving isotropic turbulence in the final decay region. These measurements provided information about the properties of both of these regions. Measurements also provided the temporal properties of secondary drop deformation and breakup for shock wave disturbances at large liquid-gas density ratios. Numerical simulations yielded corresponding information at conditions more representative of practical combustion chambers that would be difficult to address with physical experiments.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 2001
Accession Number
ADA399707

Entities

People

  • Gerard M. Faeth

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Chemistry
  • Computational Fluid Dynamics
  • Computational Science
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Measurement
  • Mechanics
  • Propulsion Systems
  • Stratified Fluids
  • Surface Tension
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Fluid Mechanics and Fluid Dynamics.