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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuel

Determination of Thermoacoustic Response in a Demonstrator Gas Turbine Engine

[+] Author and Article Information
C. A. Arana, B. Sekar

Propulsion Directorate, Air Force Research Laboratory, Wright Patterson AFB, OH 45433-7251

M. A. Mawid

Engineering Research & Analysis Company, Dayton, OH 45440-4429

C. B. Graves

Pratt and Whitney, East Hartford, CT

J. Eng. Gas Turbines Power 124(1), 46-57 (Oct 01, 2000) (12 pages) doi:10.1115/1.1374200 History: Received October 01, 1999; Revised October 01, 2000
Copyright © 2002 by ASME
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References

Darling, D., Radhakrishnan, K., Oyediran, A., and Cowan, E., 1995, “Combustion-Acoustic Stability Analysis for Premixed Gas Turbine Combustors,” NASA TM 107024.
Bloxsidge,  G. J., Dowling,  A. P., and Langhorne,  P. J., 1988, “Reheat Buzz: An Acoustically Coupled Combustion Instability, Part 2: Theory,” J. Fluid Mech., 193, pp. 445–473.
Bloxsidge,  G. J., Dowling,  A. P., and Langhorne,  P. J., 1988, “Active Control of Reheat Buzz,” AIAA J., 26, No. 7, pp. 783–790.
Shyy, W., and Udaykumar, 1990, “Numerical Simulation of Thermo-Acoustic Effect on Longitudinal Combustion Instabilities,” 26th JPC, AIAA 90-2065.
Mohanraj, R., and Zinn, B. T., 1998, “Numerical Study of the Performance of Active Control Systems for Combustion Instabilities,” 36th JPC, AIAA 98-0356.
Smith, C. E., and Leonard, A. D., 1997, “CFD Modeling of Combustion Instability in Premixed Axisymmetric Combustors,” ASME Paper No. 97-GT-305.
Habiballah, M., and Dubois, I., 1995, “Numerical Analysis of Engine Instability,” 31st JPC, AIAA 95-37213.
Kim, Y. M., Chen, C. P., Ziebarth, J. P., and Chen, Y. S., 1992, “Prediction of High Frequency Combustion Instability in Liquid Propellent Engines,” 28th JPC, AIAA 92-3763.
Quinn, D. D., and Paxson, D. E., 1998, “A Simplified Model for the Investigation of Acoustically Driven Combustion Instability,” 34th JPC, AIAA-98-3764.
Mawid, M. A., and Sekar, B., 1999, “A Numerical Study of Active Control of Combustion-Driven Dynamic Instabilities in Gas-Turbine Combustors,” 35th JPC, AIAA 99-2778.
Hsiao, G., Pandalai, R., Hura, H., and Mongia, H. C., 1998, “Combustion Dynamic Modeling for Gas Turbine Engines,” 34th JPC, AIAA-98-3380.
Ohtsuka, M., Yoshida, S., Inage, S., and Kobayashi, N., 1998, “Combustion Oscillation Analysis of Premixed Flames at Elevated Pressures,” ASME Paper No. 98-GT-581.
Yang, V., and Anderson, W., 1995, “Liquid Rocket Engine Combustion Instability,” Prog. Astronaut. Aeronaut., 169 .
Paxson, D. E., 1992, “A General Numerical Model for Wave Rotor Analysis,” NASA TM 105740, July.
Paxson, D. E., 1993, “An Improved Numerical Model for Wave Rotor Design and Analysis,” AIAA Paper 93-0482, Jan. (also NASA TM 105915).
Paxson,  D. E., 1995, “A Comparison Between Numerically Modeled and Experimentally Measured Loss Mechanisms in Wave Rotors,” AIAA J. Propul. Power, 11, No. 5, pp. 908–914 (also NASA TM 106279).
Nalim,  R. M., and Paxson,  D. E., 1997, “A Numerical Investigation of Premixed Combustion in Wave Rotors,” ASME J. Eng. Gas Turbines Power, 119, pp. 668–675.
Crocco, L., and Cheng, S. I., 1958, “Theory of Combustion Instability in Liquid Rocket Engines,” AGAR Dograph No. 8, Butterworths Scientific Publications, London, 1956.
Vonnegut,  B., 1998, “A Vortex Whistle,” J. Acoust. Soc. Am., 26, No. 1, pp. 18–20.

Figures

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Predicted fuel injector lumped-system response factor
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Predicted fuel injector reactance as a function of frequency
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Predicted fuel injector response factor versus frequency
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Predicted magnitude of the imaginary part of the fuel injector transfer function versus frequency
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Schematic of the baseline fuel injector design configuration A
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Schematic of new fuel injector, design configuration B
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Front-end cross section of the base combustor configuration
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Waterfall graphs for pressure fluctuations for fuel injector configuration A
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Waterfall graphs for pressure fluctuations for fuel injector configuration B
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Waterfall for pressure fluctuations for fuel injector configuration B
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Frequency versus pressure drop
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Ratio of the fluctuating upstream pressure for downstream velocity (transfer function)
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Phase relationship for ratio of upstream pressure to downstream velocity
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Ratio of the fluctuating upstream pressure to downstream velocity for design configuration B
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Ratio of the fluctuating upstream pressure to downstream velocity for design configurations A and B
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Schematic of the combustion rig
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(a) and (b) Measured spectral density (PSD) versus frequency
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(a) and (b) Measured transfer function
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(a) and (b) Measured transfer function versus frequency with LING excitation
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Schematic swirler and inner passage of fuel injector as a lumped sum

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