Spray structure in counterflowing streams with and without a flame

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Combustion and Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(93)90028-2· OSTI ID:6214370

Li, S C; Libby, P A; Williams, F A ^[1]

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1. Univ. of California, San Diego, (United States). Dept. of Applied Mechanics and Engineering Sciences

An experimental and theoretical study is performed on two-phase counterflowing streams with and without flames in which methanol sprays, transported in nitrogen from a lower circular duct, flow upward to meet a pure oxygen stream that flows downward from the upper circular duct. The spray structure and entire flowfield are measured by a two-component phase doppler particle analyzer. The relative motion of droplets as a function of droplet diameter and the effect of the flame on the counterflow field are determined. The influences of the flowfield and the flame sheet on spray structure are measured. A theoretical analysis of droplet behavior in counterflowing streams is also performed on the basis of the spray equation applied away from the stagnation plane. Comparisons between measured and predicted number density as a function of axial position are made. These experimental and theoretical results help in understanding the fundamental mechanisms of spray combustion.

• DOE Contract Number: FG03-87ER13685
• OSTI ID: 6214370
• Journal Information: Combustion and Flame; (United States), Journal Name: Combustion and Flame; (United States) Vol. 94:1-2; ISSN 0010-2180; ISSN CBFMAO
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
100400 -- Synthetic Fuels-- Combustion-- (1990-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALCOHOLS
ATOMIZATION
BURNERS
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
COMPARATIVE EVALUATIONS
COUNTERFLOW SYSTEMS
DATA
DOPPLER EFFECT
DROPLETS
ELEMENTS
EQUIPMENT
EVALUATION
EXPERIMENTAL DATA
FLAMES
FLUID FLOW
HYDROXY COMPOUNDS
INFORMATION
KINETICS
MATHEMATICAL MODELS
METHANOL
MORPHOLOGY
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN
PARTICLE SIZE CLASSIFIERS
PARTICLES
REACTION KINETICS
SPRAYS
TWO-PHASE FLOW