Vaporization, Ignition, and Combustion of Two Parallel Fuel Droplet Streams.

Abstract

An analysis of the combined mechanisms of heat transfer, vaporization, ignition, and combustion of two parallel fuel droplet streams injected in a hot, oxidizing gas flow is presented. The analysis gives a qualitative understanding of the various complex phenomena involved in the vaporization and ignition of one stream of droplets followed by the propagation of the flame to a second stream and the establishment of diffusion flames surrounding each droplet stream. The two-dimensional physical model consists of a constant-property oxidizing gas flowing with a uniform velocity between two insulated planes. The temperature of the gas at the inlet of the channel is specified. The fuel droplet streams are represented as two parallel droplet sheets injected at prescribed locations within the gas flow. Liquid temperature, droplet radius, as well as droplet sheet density and velocity are specified at the inlet. Keywords: Spray combustion, Ignition of sprays, Flame propagation in sprays.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA181576

Entities

People

  • R. H. Rangel
  • William A. Sirignano

Organizations

  • University of California, Irvine

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chemical Reactions
  • Combustion
  • Computational Science
  • Differential Equations
  • Energy
  • Flame Propagation
  • Flow
  • Fluid Mechanics
  • Heat Energy
  • Heat Transfer
  • Ignition
  • Ignition Lag
  • Liquid Phases
  • Payload
  • Physical Properties
  • Two Dimensional
  • Vaporization

Readers

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

Technology Areas

  • Microelectronics