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Title: More results on oscillating edge-flames

Abstract

We examine a simple model of a side-anchored non-premixed edge-flame in order to gain insights into the oscillations that are sometimes observed in microgravity candle burning, flame-spread over liquids, etc. Previous results describe the role played by the Lewis number of the fuel, and the Damkoehler number, and here we examine both the effects of an on-edge and off-edge convective flow, and the effects of a heat sink. The on-edge flow and the heat sink tend to destabilize and the off-edge flow tends to stabilize, results consistent with our hypothesis regarding the genesis of the oscillations. (c) 2000 American Institute of Physics.

Authors:
 [1];  [1];  [2]
  1. Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, 104 S. Wright Street, Urbana, Illinois 61801 (United States)
  2. Center for the Simulation of Advanced Rockets, University of Illinois at Urbana-Champaign, 1304 W. Springfield Avenue, Urbana, Illinois 61801 (United States)
Publication Date:
OSTI Identifier:
20216386
Resource Type:
Journal Article
Journal Name:
Physics of Fluids (1994)
Additional Journal Information:
Journal Volume: 12; Journal Issue: 6; Other Information: PBD: Jun 2000; Journal ID: ISSN 1070-6631
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FLAMES; COMBUSTION; OSCILLATIONS; FLUID FLOW; CONVECTION; CHEMICAL REACTIONS; THEORETICAL DATA

Citation Formats

Buckmaster, J., Hegab, A., and Jackson, T. L. More results on oscillating edge-flames. United States: N. p., 2000. Web. doi:10.1063/1.870406.
Buckmaster, J., Hegab, A., & Jackson, T. L. More results on oscillating edge-flames. United States. doi:10.1063/1.870406.
Buckmaster, J., Hegab, A., and Jackson, T. L. Thu . "More results on oscillating edge-flames". United States. doi:10.1063/1.870406.
@article{osti_20216386,
title = {More results on oscillating edge-flames},
author = {Buckmaster, J. and Hegab, A. and Jackson, T. L.},
abstractNote = {We examine a simple model of a side-anchored non-premixed edge-flame in order to gain insights into the oscillations that are sometimes observed in microgravity candle burning, flame-spread over liquids, etc. Previous results describe the role played by the Lewis number of the fuel, and the Damkoehler number, and here we examine both the effects of an on-edge and off-edge convective flow, and the effects of a heat sink. The on-edge flow and the heat sink tend to destabilize and the off-edge flow tends to stabilize, results consistent with our hypothesis regarding the genesis of the oscillations. (c) 2000 American Institute of Physics.},
doi = {10.1063/1.870406},
journal = {Physics of Fluids (1994)},
issn = {1070-6631},
number = 6,
volume = 12,
place = {United States},
year = {2000},
month = {6}
}