Fuel spray evolution; Comparison of experiment and CFD simulation of nonevaporating spray

Journal Article · Sun Jan 01 04:00:00 EST 1989 · Journal of Engineering for Gas Turbines and Power; (USA)

DOI:https://doi.org/10.1115/1.3240218· OSTI ID:7200332

Dodge, L G; Schwalb, J A ^[1]

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1. Southwest Research Institute, San Antonio, TX (US)

Detailed spray characteristics were obtained for a small-capacity, pressure-swirl atomizer using an Aerometrics phase-Doppler particle analyzer. Measurements included drop size and velocity distributions, liquid volume fluxes, and air velocities at four axial locations, 25,50,75, and 100 mm, with complete radial traverses at each location. Drop size results were compared with measurements from a Malvern laser-diffraction instrument, and integrated liquid volume fluxes were compared with measured flow rates to estimate measurement uncertainties. Drop sizes measured by the two independent techniques and area-weighted-averaged over the radial traverses at each of the four axial stations varied on average by less than 4 percent. Integrated volume flux measurements by the phase-Doppler instrument at four axial stations differed from the nozzle flow rate by at most 19 percent, with some of the difference due to evaporation. The phase-Doppler data were used to begin an evaluation of commercial two-phase, three-dimensional, CFD code (FLUENT). Using a simplified representation of the spray based on velocity measurements 2 mm from the atomizer, it is shown that the model predicts drop trajectories, velocities, and volume fluxes reasonably well.

• OSTI ID: 7200332
• Journal Information: Journal of Engineering for Gas Turbines and Power; (USA), Journal Name: Journal of Engineering for Gas Turbines and Power; (USA) Vol. 111:1; ISSN JETPE; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
AERODYNAMICS
AIR FLOW
ANEMOMETERS
C CODES
COMPARATIVE EVALUATIONS
COMPUTER CODES
DATA
DIFFRACTION METHODS
DROPLETS
EXPERIMENTAL DATA
FLUID FLOW
FLUID MECHANICS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
INFORMATION
LASERS
MEASURING INSTRUMENTS
MEASURING METHODS
MECHANICS
NOZZLES
NUMERICAL DATA
PARTICLES
SIMULATION
SIZE
THREE-DIMENSIONAL CALCULATIONS
TWO-PHASE FLOW
VELOCITY