Secondary Breakup and Turbulence Interactions of Drops

Abstract

Experimental studies of two types of drop/gas interactions that are important in the near injector, dense region of sprays were carried out, as follows: (1) secondary drop breakup, which tends to control transport processes in dense sprays; and (2) turbulence generation by rapidly moving drops in gas environments, which tends to control interphase turbulence production in dense sprays. The drop breakup measurements showed that breakup should be treated as a rate process rather than by jump conditions in some instances and provided data about the temporal properties of breakup in the important bag and shear breakup regimes. The turbulence generation measurements showed that homogeneous dispersed flows of drops (particles) in gases consist of particle wake disturbances embedded in relatively large interwake turbulence fields and provided data about the particle wake properties and the overall turbulence properties of these flows for various particle sizes and fluxes.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1998
Accession Number
ADA354835

Entities

People

  • Gerard M. Faeth
  • J. H. Chen
  • Jiangtao Wu
  • W. H. Chou
  • Z. Dai

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Chemistry
  • Computational Fluid Dynamics
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Measurement
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Particle Size
  • Rate Of Formation
  • Surface Tension
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

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