Small laminar diffusion flames (flame height ≃2–3 mm) established by a fuel jet issuing into a quiescent medium are investigated. It was found that for these flames buoyancy effects disappeared as the flame size decreased (Fr≫1), and diffusive transport of the fuel was comparable to the convective transport of the fuel. The effect of buoyancy on these flames was studied by examining the flame shape for horizontally oriented burners. A phenomenological model was developed (based on experimentally determined flame shapes) to compare diffusion and convection transport effects. Finally, the flame shapes were theoretically determined by solving the conservation equations using similarity methods. It was seen that when the axial diffusion (in momentum and species equations) terms are included in the conservation equations, the calculated flame shape is in better agreement (as compared to without the axial diffusion term) with the experimentally measured flame shape.
Skip Nav Destination
Article navigation
Research Papers
Convection-Diffusion Controlled Laminar Micro Flames
H. Ban,
H. Ban
Combustion and Fire Research Laboratory, Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506
Search for other works by this author on:
S. Venkatesh,
S. Venkatesh
Combustion and Fire Research Laboratory, Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506
Search for other works by this author on:
K. Saito
K. Saito
Combustion and Fire Research Laboratory, Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506
Search for other works by this author on:
H. Ban
Combustion and Fire Research Laboratory, Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506
S. Venkatesh
Combustion and Fire Research Laboratory, Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506
K. Saito
Combustion and Fire Research Laboratory, Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506
J. Heat Transfer. Nov 1994, 116(4): 954-959 (6 pages)
Published Online: November 1, 1994
Article history
Received:
April 1, 1993
Revised:
November 1, 1993
Online:
May 23, 2008
Citation
Ban, H., Venkatesh, S., and Saito, K. (November 1, 1994). "Convection-Diffusion Controlled Laminar Micro Flames." ASME. J. Heat Transfer. November 1994; 116(4): 954–959. https://doi.org/10.1115/1.2911471
Download citation file:
Get Email Alerts
Cited By
Enhancing Thermal Transport in Polymeric Composites Via Engineered Noncovalent Filler–Polymer Interactions
J. Heat Mass Transfer (March 2025)
Numerical Simulation of Phase Change Dual-Phase-Lag Bioheat Model With Nanocryosurgery Using Radial Basis Function Meshfree Approach
J. Heat Mass Transfer (June 2025)
Discrete Symmetry Analysis of Free Convection in a Cylindrical Porous Annular Microchannel at Low-Pressure Level
J. Heat Mass Transfer (June 2025)
Turbulent Flow and Heat Transfer Characteristics of Novel Vortex Ribs in a Rotating Channel
J. Heat Mass Transfer (June 2025)
Related Articles
Holographic Interferometry Temperature Measurements in Liquids for Pool Fires Supported on Water
J. Heat Transfer (November,1992)
Assessing Halon Alternatives for Aircraft Engine Nacelle Fire Suppression
J. Heat Transfer (May,1995)
A Skewed PDF Combustion Model for Jet Diffusion Flames
J. Heat Transfer (November,1990)
Two-Dimensional Spectroscopic Observation of Nonluminous Flames in a Regenerative Industrial Furnace Using Coal Gas
J. Eng. Gas Turbines Power (January,2004)
Related Proceedings Papers
Related Chapters
Energy Balance for a Swimming Pool
Electromagnetic Waves and Heat Transfer: Sensitivites to Governing Variables in Everyday Life
Visual Simulation Software Development of Exhaust-Gas Diffusion in a Kitchen Burning Liquefied-Gas
Proceedings of the International Conference on Technology Management and Innovation
The Identification of the Flame Combustion Stability by Combining Principal Component Analysis and BP Neural Network Techniques
International Conference on Mechanical Engineering and Technology (ICMET-London 2011)