Laminar Spray Combustion,

Abstract

A spray combustor, with flow velocities in the laminar range, exhibits a unique operating mode where large amplitude oscillations of the flame height occur and are self induced. The phenomenon, not encountered before, is unique to fuel supplied in the form of fine liquid droplets and does not occur while using gaseous fuel. Various flow mechanisms appear to be coupled in such a way as to trigger and maintain the oscillatory motion of the flame. These include heat transfer and evaporation processes, dynamics of two-phase flows and the effect of gravity (and buoyancy forces). Heptane fuel was used in most of the tests. Tests performed with iso-octane showed similar results. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 23, 1992
Accession Number
ADP009041

Entities

People

  • Yeshayahou Levy

Organizations

  • Technion – Israel Institute of Technology

Tags

DTIC Thesaurus Topics

  • Buoyancy
  • Combustion
  • Combustors
  • Flow
  • Fluid Mechanics
  • Fluids
  • Fuels
  • Gaseous Fuels
  • Heat Energy
  • Heat Transfer
  • Mechanics
  • Two Phase Flow

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.
  • Marine Hydrodynamics