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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuel

Effects of Fuel Nozzle Displacement on Pre-Filming Airblast Atomization

[+] Author and Article Information
Y. M. Han, W. S. Seol, D. S. Lee

Aero-propulsion Department, Korea Aerospace Research Institute, Taejon, Korea

V. I. Yagodkin

Central Institute of Aviation Motors, Moscow, Russia

I. S. Jeung

Department of Aerospace Engineering, Seoul National University, Seoul, Korea

J. Eng. Gas Turbines Power 123(1), 33-40 (Oct 20, 1999) (8 pages) doi:10.1115/1.1335480 History: Received March 19, 1998; Revised October 20, 1999
Copyright © 2001 by ASME
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References

Lefebvre, A. H., and Miller, D., 1966, “The Development of an Air Blast Atomizer for Gas Turbine Application,” COA-Report-Aero-193, College of Aeronautics, Cranfield, England.
Rizkalla,  A., and Lefebvre,  A. H., 1975, “The Influence of Air and Liquid Properties on Airblast Atomization,” ASME J. Eng. Gas Turbines Power, 97, No. 3, pp. 316–320.
Rizk,  N. K., and Lefebvre,  A. H., 1980, “Influence of Liquid Film Thickness on Airblast Atomization,” ASME J. Eng. Gas Turbines Power, 102, pp. 706–710.
Lorenzetto,  G. E., and Lefebvre,  A. H., 1977, “Measurements of Drop Size on a Plain Jet Airblast Atomizer,” AIAA J., 15, No. 7, pp. 1006–1010.
Jasuja,  A. K., 1979, “Atomization of Crude and Residual Fuel Oils,” ASME J. Eng. Gas Turbines Power, 101, No. 2, pp. 250–258.
El-Shanawany,  M. S. M. R., and Lefebvre,  A. H., 1980, “Airblast Atomization: The Effect of Linear Scale on Mean Drop Size,” J. Energy, 4, No. 4, pp. 184–189.
Sattlemayer,  T., and Wittig,  S., 1986, “Internal Flow Effects in Prefilming Airblast Atomizers: Mechanisms of Atomization and Droplet Spectra,” ASME J. Eng. Gas Turbines Power, 108, pp. 465–472.
Wittig,  S., Himmelsbach,  J., Noll,  B., Feld,  H. J., and Samenfink,  W., 1992, “Motion and Evaporation of Shear-Driven Liquid Films in Turbulent Gases,” ASME J. Eng. Gas Turbines Power, 114, pp. 395–400.
Breña de la Rosa,  A., Wang,  G., and Bachalo,  W. D., 1992, “The Effect of Swirl on the Velocity and Turbulence Fields of a Liquid Spray,” ASME J. Eng. Gas Turbines Power, 114, pp. 72–81.
Wang, H. Y., McDonell, V. G., and Samuelsen, G. S., 1992, “The Two Phase Flow Downstream of a Production Engine Combustor Swirl Cup,” Proceedings, Twenty-Fourth Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, PA, pp. 1457–1463.
Wang, H. Y., McDonell, V. G., and Samuelsen, G. S., 1993, “Influence of Hardware Design on the Flow Field Structures and the Patterns of Droplets Dispersion: Part I—Mean Quantities,” ASME Paper 93-GT-199.
Rizk,  N. K., and Mongia,  H. C., 1992, “Calculation Approach Validation for Airblast Atomizers,” Transactions of the ASME, 114, April, pp. 386–394.
Lefebvre, A. H., 1995, “The Role of Fuel Preparation in Low Emissions Combustion,” ASME Paper 95-GT-465.
Han, Y. M., Seol, W. S., Yoon, M. S., Lee, D. S., Yagodkin, V. I., and Jeung, I. S., 1997, “An Experimental Study on Modeling of Fuel Atomization for Simulating the Idle Regime of a Gas Turbine Combustor by Atmospheric Testing,” ASME Paper 97-GT-152.
Bach,  T. V., and Gouldin,  F. C., 1982, “Flow Measurements in a Model Swirl Combustor,” AIAA J., 20, No. 5, pp. 642–651.
Blümcke, E., Eickhoff, E., Eassa, C., and Koopman, J., 1987, “Analysis of the Flow Through Double Airblast Atomizers,” AGARD-CP-422, pp. 40_1-40_13.
Wang,  H. Y., McDonell,  V. G., Sowa,  W. A., and Samuelsen,  G. S., 1993, “Scaling of the Two-Phase Flow Downstream of a Gas Turbine Combustor Swirl Cup: Part I—Mean Quantities,” ASME J. Eng. Gas Turbines Power, 115, pp. 453–460.
McDonell, V. G., Lee, S. W., and Samuelsen, G. S., 1994, “Effect of Semi-Confinement on Spray Behavior in the Flow Field Downstream of an Aero-Engine Combustor Dome,” ICLASS-94 Rouen, France, July, Paper VII-6, pp. 726–733.
McDonell, V. G., Lee, S. W., and Samuelsen, G. S., 1995, “Spray Behavior in Reacting and Non-Reacting Flow Fields Downstream of an Aero-Engine Combustor Dome,” in Mechanics and Combustion of Droplets and Sprays, H. H. Chiu, and N. Chigier, eds., Begell, Housers, Inc., New York, pp. 281–294.

Figures

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Experimental setup and details of nozzle/swirler module
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Visualization of the effects of nozzle displacement on sprays (ΔPa=4.5 kPa,ΔPf=0.6 bar)
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Axial-radial velocity vector of gas phase without fuel injection (ΔPa=4.5 kPaND=0.0 mm)
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Swirl velocity of gas phase without fuel injection (ΔPa=4.5 kPaND=0.0 bar)
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Effect of nozzle displacement on velocity fields of 10–20 μm driplets (ΔPa=4.5 kPa,ΔPf=0.6 bar)
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Swirl velocity of 10–20 μm droplets for δND=0.0 mm(ΔPa=4.5 kPa,ΔPf=0.6 bar)
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Effects of nozzle displacement on velocity fields of 90–100 μm droplets (ΔPa=4.5 kPa,ΔPf=0.6 bar)
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Swirl velocity of 90–100 μm droplets for δND=0.0 mm
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Effects of nozzle displacement on SMD distribution
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Effects of nozzle displacement on number density distribution
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Effects of nozzle displacement on volume flux distribution

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