An experimental arrangement for the investigation of auto-ignition of a pulsed jet in a coflow of hot exhaust gas from a laminar lean premixed flame at atmospheric pressure is presented. The ignition events were captured by high-speed imaging of the chemiluminescence associated with the igniting flame kernels at a frame rate of 5 kHz. The flow-field characteristics were determined by high-speed particle image velocimetry and Schlieren images. Furthermore, high-speed imaging of laser-induced fluorescence of OH was applied to visualize the exhaust gas flow and the ignition events. Auto-ignition was observed to occur at the periphery of the jet with high reproducibility in different runs concerning time and location. In each measurement run, several hundred consecutive single shot images were recorded from which sample images are presented. The main goals of the study are the presentation of the experimental arrangement and the high-speed measuring systems and a characterization of the auto-ignition events occurring in this system.
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e-mail: wolfgang.meier@dlr.de
e-mail: isaac.boxx@dlr.de
e-mail: christoph.arndt@dlr.de
e-mail: mirkog@stanford.edu
e-mail: clemens@mail.utexas.edu
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February 2011
Research Papers
Investigation of Auto-Ignition of a Pulsed Methane Jet in Vitiated Air Using High-Speed Imaging Techniques
W. Meier,
W. Meier
Institute of Combustion Technology,
e-mail: wolfgang.meier@dlr.de
German Aerospace Center (DLR)
, Pfaffenwaldring 38, D-70569 Stuttgart, Germany
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I. Boxx,
I. Boxx
Institute of Combustion Technology,
e-mail: isaac.boxx@dlr.de
German Aerospace Center (DLR)
, Pfaffenwaldring 38, D-70569 Stuttgart, Germany
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C. Arndt,
C. Arndt
Institute of Combustion Technology,
e-mail: christoph.arndt@dlr.de
German Aerospace Center (DLR)
, Pfaffenwaldring 38, D-70569 Stuttgart, Germany
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M. Gamba,
M. Gamba
Department of Mechanical Engineering,
e-mail: mirkog@stanford.edu
Stanford University
, Building 530, 440 Escondido Mall, Stanford, CA 94305-3030
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N. Clemens
N. Clemens
Department of Aerospace Engineering and Engineering Mechanics,
e-mail: clemens@mail.utexas.edu
University of Texas at Austin
, Austin, TX 78712
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W. Meier
Institute of Combustion Technology,
German Aerospace Center (DLR)
, Pfaffenwaldring 38, D-70569 Stuttgart, Germanye-mail: wolfgang.meier@dlr.de
I. Boxx
Institute of Combustion Technology,
German Aerospace Center (DLR)
, Pfaffenwaldring 38, D-70569 Stuttgart, Germanye-mail: isaac.boxx@dlr.de
C. Arndt
Institute of Combustion Technology,
German Aerospace Center (DLR)
, Pfaffenwaldring 38, D-70569 Stuttgart, Germanye-mail: christoph.arndt@dlr.de
M. Gamba
Department of Mechanical Engineering,
Stanford University
, Building 530, 440 Escondido Mall, Stanford, CA 94305-3030e-mail: mirkog@stanford.edu
N. Clemens
Department of Aerospace Engineering and Engineering Mechanics,
University of Texas at Austin
, Austin, TX 78712e-mail: clemens@mail.utexas.edu
J. Eng. Gas Turbines Power. Feb 2011, 133(2): 021504 (6 pages)
Published Online: October 28, 2010
Article history
Received:
April 13, 2010
Revised:
April 16, 2010
Online:
October 28, 2010
Published:
October 28, 2010
Citation
Meier, W., Boxx, I., Arndt, C., Gamba, M., and Clemens, N. (October 28, 2010). "Investigation of Auto-Ignition of a Pulsed Methane Jet in Vitiated Air Using High-Speed Imaging Techniques." ASME. J. Eng. Gas Turbines Power. February 2011; 133(2): 021504. https://doi.org/10.1115/1.4002014
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