Sub- and Super-Critical Evaporation and Combustion of a Moving Droplet

Abstract

We are conducting a comprehensive computational study of fuel droplet evaporation and combustion in sub- and super-critical ambient conditions under forced convection. An experimentally validated model for a moving spherical droplet that undergoes evaporation has been developed. The model is used to predict droplet lifetimes and droplet penetration distances over a wide range of ambient pressures. In addition, a low pressure, experimentally validated model for a moving spherical droplet that undergoes combustion has been developed. This model employs a one-step overall reaction and is used to predict extinction velocities for different size droplets. Future work will allow for droplet deformation and semi-detailed chemical kinetics.

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Document Details

Document Type
Technical Report
Publication Date
Jun 19, 2001
Accession Number
ADP012116

Entities

People

  • George Gogos

Organizations

  • University of Nebraska–Lincoln

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Axisymmetric
  • Barometric Pressure
  • Chemical Kinetics
  • Combustion
  • Convection
  • Diameters
  • Energy
  • Energy Conservation
  • Engines
  • Environment
  • Equations
  • Evaporation
  • Experimental Data
  • High Pressure
  • High Temperature
  • Liquid Phases
  • Thermodynamic Properties

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.
  • Computational Fluid Dynamics (CFD)