Spray structure in counterflowing streams with and without a flame

Journal Article · Thu Jul 01 00:00:00 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]

---

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), Vol. 94:1-2; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

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