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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels

Laser-Based Investigations of Periodic Combustion Instabilities in a Gas Turbine Model Combustor

[+] Author and Article Information
R. Giezendanner, P. Weigand, X. R. Duan, W. Meier, U. Meier, M. Aigner

DLR, Institute of Combustion Technology, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany

B. Lehmann

DLR, Institute of Propulsion Technology, Cologne, Germany

J. Eng. Gas Turbines Power 127(3), 492-496 (Jun 24, 2005) (5 pages) doi:10.1115/1.1850498 History: Received October 01, 2003; Revised March 01, 2004; Online June 24, 2005
Copyright © 2005 by ASME
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References

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Figures

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Schematic view of combustor
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Photographs of steady (a) and oscillating flame
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OH LIF images for two phase angles with 180 deg phase angle separation
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CH LIF distributions at α=90 deg (top) and 270 deg
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Axial (top) and radial (bottom) velocity profiles for four phase angles at 1 mm distance from the burner
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Radial temperature profiles for four phase angles at 5 mm distance from the burner
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Mixture fraction f (left) and temperature (right) at 90 deg (top) and 270 deg (bottom) phase angle
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Phase angle dependence of pressure, temperature, and integral heat release

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