Title: Experimental investigations and laser based validation measurements in a gas turbine model combustor

Authors: X.R. Duan, P. Weigand, W. Meier, O. Keck,, W. Stricker, M. Aigner, B. Lehmann

Addresses: Institut fur Verbrennungstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623 Berlin, Germany. ' Institut fur Verbrennungstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623 Berlin, Germany. ' Institut fur Verbrennungstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623 Berlin, Germany. ' Institut fur Verbrennungstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623 Berlin, Germany. ' Institut fur Verbrennungstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623 Berlin, Germany. ' Institut fur Verbrennungstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623 Berlin, Germany. ' Institut fur Antriebstechnik, Deutsches Zentrum fur Luft- und Raumfahrt (DLR), Muller-Breslau-Str. 8, D-10623, Berlin, Germany

Abstract: A swirled CH4/air diffusion flame has been operated in a gas turbine model combustor at the lean blow-off limit. Laser Doppler velocimetry, planar laser-induced fluorescence of OH and CH, and laser Raman scattering were applied in order to measure velocities, flame structures, and the joint probability density functions of major species concentrations, mixture fractions and temperatures. The main goals of the investigations were a better understanding of the complex physical and chemical processes in flames with swirl, e.g., mixing, stabilisation, heat release, and finite-rate chemistry effects, and the generation of an extensive data base for the validation of numerical flame codes.

Keywords: gas turbine model combustor; swirl; lean blow-off; turbulence-chemistry interaction; validation measurements; laser techniques.

DOI: 10.1504/PCFD.2004.004085

Progress in Computational Fluid Dynamics, An International Journal, 2004 Vol.4 No.3/4/5, pp.175 - 182

Published online: 29 Mar 2004 *

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