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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuel

Compressor Exit Conditions and Their Impact on Flame Tube Injector Flows

[+] Author and Article Information
A. G. Barker, J. F. Carrotte

Rolls Royce University Technology Centre, Department of Aeronautical and Automotive Engineering and Transport Studies, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK

J. Eng. Gas Turbines Power 124(1), 10-19 (Mar 01, 1999) (10 pages) doi:10.1115/1.1383773 History: Received October 01, 1998; Revised March 01, 1999
Copyright © 2002 by ASME
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References

Carrotte, J. F., McGuirk, J. J., and Stevens, S. J., 1995,“Diffuser Aerodynamic Design—The Impact of Developments in Combustor Technology,” Proceedings of the XII ISABE (International Symposium on Air Breathing Engines) Conference, F. S. Billig, ed, Melbourne, Australia, Sept. pp 1033–1044.
Klein,  A., 1995, “Characteristics of Combustor Diffusers,” Prog. Aerosp. Sci., 31, pp. 171–271.
Stevens,  S. J., and Williams,  G. J., 1980, “The Influence of Inlet Conditions on the Performance of Annular Diffusers,” ASME J. Fluids Eng., 102, Sept.
Stevens, S. J., Harasgama, S. P., and Wray, A. P., “The Influence of Blade Wakes on Combustor Shortened Pre-diffusers,” J. Aircr., 21 , No. 9.
Klein, A., 1988, “The Relation Between Losses and Entry Flow Conditions in Short Dump Diffusers for Combustors,” Z. Flugwiss. Weltraumforsch.
Carrotte,  J. F., Bailey,  D. W., and Frodsham,  C. W., 1995 “Detailed Measurements on a Modern Combustor Dump Diffuser System,” ASME J. Eng. Gas Turbines Power, 117, pp. 678–685.
Madden, T. J., Schlein, B. C., and Wagner, B., “Cascade Pre-diffuser Performance Evaluation,” Paper no. AIAA-88-3275.
Barker, A. G., Carrotte, J. F., and Frodsham, C. W., 1997, “The Effect on Combustor Diffuser Performance of Structural OGV/Pre-diffuser systems,” ASME 97-GT-304.
Wray, A. P., and Carrotte, J. F., “The Development of a Large Annular Facility for Testing Gas Turbine Combustor Diffuser Systems,” Paper no. AIAA 93-2546.
Barker, A. G., and Carrotte, J. F., 1998, “Strutted Pre-diffuser Studies Summary,” Dept. of AAETS, Report No. TT98r04.
Hill,  P. G., Schaub,  U. W., and Senoo,  Y., 1963, “Turbulent Wakes in Pressure Gradients,” ASME J. Fluids Mech., pp. 518–524.
Lieblein, S., 1965, “Experimental Flow in 2D Cascades,” The Aerodynamic Design of Axial Flow Compressor, NASA SP36, Chapter 5.
Yang,  J. T., Tsai,  G. L., and Wang,  W. B., 1994, “Near-Wake Characteristics of Various V-Shaped Bluff Bodies,” J. Propul. Power, 10, No. 1.
Roshko,  A., 1955, “On the Wake and Drag of Bluff Bodies,” J. Aeronaut. Sci., Feb.
Bearman,  P. W., 1967, “On Vortex Street Wakes,” J. Fluid Mech., 28, Part 4, pp. 625–641.
Sherwood, D., Rolls-Royce, private communication.
Stevens,  S. J., Nayak,  U. S. L., Preston,  J. F., Robinson,  P. J., and Scrivener,  C. T. J., 1978, “Influence of Compressor Exit Conditions on Diffuser Performance,” J. Aircr., 15, No. 8.

Figures

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Geometric definition of outlet guide vane (OGV) diffuser assemblies
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Flame tube fuel injectors and instrumentation
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Outlet guide vane (OGV) exit axial velocity contours (plane X3)
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Pre-diffuser exit axial velocity contours (plane X4)
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Experimental and predicted relative wake depths
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Hotwire mean velocity profiles within the dump cavity
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Frequency spectrum measured in dump cavity
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Simulated fuel injector stagnation pressure distributions
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Simulated fuel injector stagnation pressure distributions
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Engine representative fuel injector stagnation pressure distributions—long chord outlet guide vane (OGV)
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Engine representative fuel injector stagnation pressure distributions—standard strut, short chord outlet guide vane (OGV)
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Circumferential profiles 10 mm downstream of engine representative fuel injector—long chord structural outlet guide vane (OGV)
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Circumferential profiles 10 mm downstream of engine representative fuel injector—standard strut (short chord outlet guide vane (OGV))
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Frequency spectra upstream and downstream of engine representative fuel injector—standard strut (short chord outlet guide vane (OGV))

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