Next Article in Journal
Numerical Investigation of the Performance Impact of Stator Tilting Endwall Designs on a Mixed Flow Turbine
Previous Article in Journal
Experimental Investigation of Centrifugal Flow in Rotor–Stator Cavities at High Reynolds Numbers >108
Article

A Parametric Study on the LES Numerical Setup to Investigate Fan/OGV Broadband Noise †

1
Univ Lyon, École Centrale de Lyon, INSA Lyon, Université Claude Bernard Lyon I, CNRS, Laboratoire de Mécanique des Fluides et d’Acoustique, UMR 5509, 36 Avenue Guy de Collongue, 69134 Ecully, France
2
Safran Aircraft Engines, 77550 Moissy-Cramayel, France
*
Author to whom correspondence should be addressed.
This manuscript is an extended version of our meeting paper published in the Proceedings of the 14th European Turbomachinery Conference, Gdansk, Poland, 12–16 April 2021.
Current address: 36 Avenue Guy de Collongue, 69134 Écully, France.
Academic Editor: Antoine Dazin
Int. J. Turbomach. Propuls. Power 2021, 6(2), 12; https://doi.org/10.3390/ijtpp6020012
Received: 1 May 2021 / Revised: 17 May 2021 / Accepted: 17 May 2021 / Published: 26 May 2021
In the present paper, large eddy simulations are performed to study two different mechanisms of Fan/OGV broadband noise: airfoil self-noise and turbulence interaction noise. Firstly, the current study focuses on the prediction of airfoil self-noise from a thin plate with a sharp trailing edge and a chord-based Reynolds number of the order of 106. The boundary layer is tripped to trigger transition to turbulence, and a parameter study is performed to study the influence of the near-wall modeling, grid topology and refinement in the near-wall and wake regions, the spanwise domain extent, and the tripping method. Empirical and analytical models, as well as available DNS data are used for validation purposes. Secondly, the interaction noise from a thin plate impinged by an incoming synthetic turbulent flow is studied. For both cases, far-field acoustic spectra are compared to Amiet’s models for leading and trailing edge noise showing a good agreement. View Full-Text
Keywords: trailing edge noise; turbulence interaction noise; large eddy simulations; boundary layer tripping trailing edge noise; turbulence interaction noise; large eddy simulations; boundary layer tripping
Show Figures

Figure 1

MDPI and ACS Style

Al-Am, J.; Clair, V.; Giauque, A.; Boudet, J.; Gea-Aguilera, F. A Parametric Study on the LES Numerical Setup to Investigate Fan/OGV Broadband Noise. Int. J. Turbomach. Propuls. Power 2021, 6, 12. https://doi.org/10.3390/ijtpp6020012

AMA Style

Al-Am J, Clair V, Giauque A, Boudet J, Gea-Aguilera F. A Parametric Study on the LES Numerical Setup to Investigate Fan/OGV Broadband Noise. International Journal of Turbomachinery, Propulsion and Power. 2021; 6(2):12. https://doi.org/10.3390/ijtpp6020012

Chicago/Turabian Style

Al-Am, Jean, Vincent Clair, Alexis Giauque, Jérôme Boudet, and Fernando Gea-Aguilera. 2021. "A Parametric Study on the LES Numerical Setup to Investigate Fan/OGV Broadband Noise" International Journal of Turbomachinery, Propulsion and Power 6, no. 2: 12. https://doi.org/10.3390/ijtpp6020012

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop