Ignition and Flame Propagation in Sprays.

Abstract

An experimental and numerical analysis of ignition and flame propagation in sprays is done. A unique multi-orifice impulsed spray generator is designed and developed. This spray generator is capable of producing arrays of droplets, with controllable droplet size and spacings. Radiation effect on the droplet evaporation in spray, upstream of the flame front is studied through analytical modeling. An extensive numerical optimization study has been performed to compare the efficiency of several explicit and implicit schemes, and a numerical code has been developed to study a stabilized laminar flame in two-phase mixtures. A hybrid Eulerian-Lagrangian scheme has been developed to solve the gas and liquid phase equations.

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Document Details

Document Type
Technical Report
Publication Date
Jul 10, 1984
Accession Number
ADA143773

Entities

People

  • N. Ashgrizzadeh
  • S. C. Yao
  • S. K. Aggarwal
  • William A. Sirignano

Organizations

  • Carnegie Mellon University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkanes
  • Boundary Layer
  • Chemical Reactions
  • Combustion
  • Combustion Chambers
  • Computational Fluid Dynamics
  • Computational Science
  • Energy Transfer
  • Fluid Dynamics
  • Heat Of Vaporization
  • Heat Transfer
  • Ignition Lag
  • Mass
  • Measurement
  • Mechanical Engineering
  • Thermodynamics
  • Two Dimensional

Readers

  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)
  • Rocket Propulsion.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster