Droplet Collision in Liquid Propellant Combustion

Abstract

Droplet collision is of relevance to spray combustion, intimate!y influencing the spray characteristics in the dense spray region. The present study aims to gain fundamental understanding on the mechanisms governing the observed phenomena of permanent coalescence, bouncing, and separation upon collision. For the present program a computer code was developed for droplet collision, allowing the study of the extent of droplet deformation, the dynamics of interdroplet flow, the relative importance of the gas resistance force as compared to the collisional inertia, and the relevant rheological properties of the gases and liquids. A criterion was derived for the transition from permanent coalescence to coalescence followed by separation.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1997
Accession Number
ADA329722

Entities

People

  • Chung K. Law

Organizations

  • Princeton University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Alkanes
  • Capillary Waves
  • Chemistry
  • Coalescence
  • Collisions
  • Combustion
  • Computational Fluid Dynamics
  • Dynamics
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • High Pressure
  • Liquid Propellants
  • Photographic Images
  • Surface Energy
  • Surface Tension
  • Transitions

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Plasma Physics / Magnetohydrodynamics
  • Theoretical Analysis.