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Analysis of the Effects of Wall Boundary Conditions and Detailed Kinetics on the Simulation of a Gas Turbine Model Combustor Under Very Lean Conditions

In: High Performance Computing in Science and Engineering '11

Author

Listed:
  • F. Rebosio

    (Universität Stuttgart, Institut für Verbrennungstechnik der Luft- und Raumfahrt)

  • A. Widenhorn

    (Universität Stuttgart, Institut für Verbrennungstechnik der Luft- und Raumfahrt)

  • B. Noll

    (Universität Stuttgart, Institut für Verbrennungstechnik der Luft- und Raumfahrt)

  • M. Aigner

    (Universität Stuttgart, Institut für Verbrennungstechnik der Luft- und Raumfahrt)

Abstract

The numerical study presents the simulation of the DLR gas turbine model combustor operated at very lean conditions, near the lean extinction limit. The results have been validated against numerical data: while the hybrid LES-RANS model adopted for the turbulence closure demonstrated to be very well suited for such complex simulations, the combustion revealed to be dependent on the chemical kinetic mechanism adopted for the finite rate chemistry module. The latter was used in combination with the eddy dissipation model and it was possible to show that the flame root zone is mainly controlled by chemical kinetic effects.

Suggested Citation

  • F. Rebosio & A. Widenhorn & B. Noll & M. Aigner, 2012. "Analysis of the Effects of Wall Boundary Conditions and Detailed Kinetics on the Simulation of a Gas Turbine Model Combustor Under Very Lean Conditions," Springer Books, in: Wolfgang E. Nagel & Dietmar B. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '11, edition 127, pages 229-243, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-23869-7_18
    DOI: 10.1007/978-3-642-23869-7_18
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