Partially premixed prevalorized kerosene spray combustion in turbulent flow

A detailed numerical simulation of kerosene spray combustion was carried out on a partially premixed, prevaporized, three-dimensional configuration. The focus was on the flame temperature profile dependency on the length of the pre-vaporization zone. The results were analyzed and compared to experim...

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Bibliographic Details
Published in:Experimental thermal and fluid science 2010-04, Vol.34 (3), p.308-315
Main Authors: Chrigui, M., Moesl, K., Ahmadi, W., Sadiki, A., Janicka, J.
Format: Article
Language:English
Subjects:
AIR
Applied sciences
ATMOSPHERIC PRESSURE
COMBUSTION
Combustion of liquid fuels
Combustion. Flame
Computer simulation
COMPUTERIZED SIMULATION
DROPLETS
Energy
Energy. Thermal use of fuels
EVAPORATION
Exact sciences and technology
EXPERIMENTAL DATA
FLAMES
FLAMMABILITY
FLASHBACK
Fluid flow
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
KEROSENE
LAGRANGIAN FUNCTION
LENGTH
Mathematical models
SIZE
SPRAYS
TEMPERATURE DISTRIBUTION
TEMPERATURE RANGE 0273-0400 K
Theoretical studies. Data and constants. Metering
THREE-DIMENSIONAL CALCULATIONS
TURBULENT FLOW
VARIATIONS
ZONES
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Summary:A detailed numerical simulation of kerosene spray combustion was carried out on a partially premixed, prevaporized, three-dimensional configuration. The focus was on the flame temperature profile dependency on the length of the pre-vaporization zone. The results were analyzed and compared to experimental data. A fundamental study was performed to observe the temperature variation and flame flashback. Changes were made to the droplet diameter, kerosene flammability limits, a combustion model parameter and the location of the combustion initialization. Investigations were performed for atmospheric pressure, inlet air temperature of 90 °C and a global equivalence ratio of 0.7. The simulations were carried out using the Eulerian Lagrangian procedure under a fully two-way coupling. The Bray–Moss–Libby model was adjusted to account for the partially premixed combustion.
ISSN:0894-1777
1879-2286
DOI:10.1016/j.expthermflusci.2009.10.023