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Numerical Simulation of the FNG Wing Section in Turbulent Inflow

In: High Performance Computing in Science and Engineering '19

Author

Listed:
  • Jens Müller

    (University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG))

  • Maximilian Ehrle

    (University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG))

  • Thorsten Lutz

    (University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG))

  • Ewald Krämer

    (University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG))

Abstract

The influence of atmospheric turbulence on an extruded airfoil of the FNG wing in clean configuration is investigated using numerical simulation. Turbulence is injected into the flow field using a momentum source term. It is shown that the turbulence can be propagated accurately to the airfoil. Spectra of the pressure coefficient at different chordwise positions indicate a correlation between the inflow velocity spectrum and the local $$c_p$$ c p spectra, especially for low to medium wave numbers. Furthermore, the applicability of the simplified Disturbance Velocity Approach (DVA) is evaluated, where the velocities of the atmospheric turbulence are added to the flux balance using superposition. The DVA shows satisfying results for the lift spectrum and the $$c_p$$ c p spectrum at the leading edge over a broad wave number range. An overestimation of the amplitudes for the pitching moment and $$c_p$$ c p spectra at $$x/c=0.2$$ x / c = 0.2 occurs at medium to high wave numbers. A scaling test of the TAU code in a development version with the implemented DVA is performed on this test case and shows satisfying scalability.

Suggested Citation

  • Jens Müller & Maximilian Ehrle & Thorsten Lutz & Ewald Krämer, 2021. "Numerical Simulation of the FNG Wing Section in Turbulent Inflow," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '19, pages 435-450, Springer.
    • Handle: RePEc:spr:sprchp:978-3-030-66792-4_29
    DOI: 10.1007/978-3-030-66792-4_29
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