Droplet Collision in Liquid Propellant Combustion

Abstract

The collision behavior of droplets of low surface tension fuels simulating near-critical droplet collision in high-pressure engines, and of droplets of dissimilar fluids simulating the atomization of unlike reactants, were experimentally studied. Results showed that the low-surface tension fuels do not readily disintegrate, while the dissimilar fuel droplets can actually merge. These collision dynamics were also computationally simulated using the techniques of front tracking and molecular dynamics. The computer algorithms developed for droplet collision were also extended to simulate the dynamics of wrinkled flames in complex flows, including flame-vortex interaction and the development of the Landau-Darrieus cells.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2000
Accession Number
ADA383455

Entities

People

  • Chung K. Law

Organizations

  • Princeton University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Collisions
  • Combustion
  • Dynamics
  • Flow
  • High Pressure
  • Instability
  • Liquid Propellants
  • Materials
  • Molecular Dynamics
  • Physics
  • Propellants
  • Simulations
  • Surface Tension
  • Thermal Expansion

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.
  • Fluid Dynamics.