Numerical Characterization of a Gas Turbine Model Combustor

A. Widenhorn (), B. Noll and M. Aigner
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A. Widenhorn: Universität Stuttgart, Institut für Verbrennungstechnik der Luft- und Raumfahrt

A chapter in High Performance Computing in Science and Engineering '09, 2010, pp 179-195 from Springer

Abstract: Abstract In this contribution the three-dimensional reacting turbulent flow field of a swirl-stabilized gas turbine model combustor is analyzed numerically. The investigated partially premixed and lifted CH4/air flame has a thermal power load of P th =35kW and a global equivalence ratio of φ=0.65. To study the reacting flow field the Scale Adaptive Simulation (SAS) turbulence model in combination with the Eddy Dissipation/Finite Rate Chemistry combustion model was applied. The simulations were performed using the commercial CFD software package ANSYS CFX-11.0. The numerically achieved time-averaged values of the velocity components and their appropriate turbulent fluctuations (RMS) are in very good agreement with the experimental values (LDA). The same excellent results were found for other flow quantities like temperature and mixture fraction. Here, the corresponding time-averaged and the appropriate RMS profiles are compared to Raman measurements. Furthermore, instantaneous flow features are discussed. The simulations have been performed on the HP XC4000 system of the High Performance Computing Centre Karlsruhe.

Keywords: Mixture Fraction; Combustion Model; Detach Eddy Simulation; ASME Turbo Expo; Precess Vortex Core (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-04665-0_13

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DOI: 10.1007/978-3-642-04665-0_13

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