Droplet Decomposition in a Reactive Atmosphere: Complete Responses for Large Activation Energies.

Abstract

A two-step combustion process, consisting of monopropellant (i.e., one-reactant) burning followed by bipropellant (i.e., two-reactant) burning, is considered. The original reactant, namely vapor from a liquid droplet, decomposes into a fuel that combines with oxidant in the surrounding atmosphere. Complete responses M(D1, D2) of the evaporation rate M of the droplet to the Damkohler numbers D1, D2 if the two reactions are determined in the limit of large activation energies. Conditions under which the response is monotonic or multi-valued (thereby exhibiting auto-ignition and auto-extinction) are identified. Previous conjectures, based on Damkohler-number asymptotics, are found to be mostly correct. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA132840

Entities

People

  • Geoffrey S. S. Ludford
  • H. V. Mcconnaughey

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Applied Mathematics
  • Asymptotic Series
  • Atmospheres
  • Burning Rate
  • Chemical Reactions
  • Combustion
  • Decomposition
  • Equations
  • Evaporation
  • Geometry
  • Heat Energy
  • Heat Of Vaporization
  • Ignition
  • Latent Heat
  • Military Research
  • Two Dimensional
  • United States

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Combustion science or combustion engineering.