Numerical prediction of the aerodynamics and acoustics of a tip leakage flow using Large-Eddy Simulation - Archive ouverte HAL Access content directly
Journal Articles International Journal of Turbomachinery, Propulsion and Power Year : 2021

Numerical prediction of the aerodynamics and acoustics of a tip leakage flow using Large-Eddy Simulation

Abstract

A Large-Eddy Simulation of the tip leakage flow of a single airfoil is carried out. The configuration consists of a non-rotating, isolated airfoil between two horizontal plates with a gap of 10 mm between the tip of the airfoil and the lower plate. The Mach number of the incoming flow is 0.2 and the Reynolds number based on the chord is 9.3 × 10 5. The objective of the present study is to investigate the best way to compute both the aerodynamics and acoustics of the tip leakage flow. In particular, the importance of the inflow conditions on the prediction of the tip leakage vortex and the airfoil loading is underlined. On the other hand, the complex structure of the tip leakage vortex and its convection along the airfoil is recovered thanks to the use of a mesh adaptation based on the dissipation of the kinetic energy. Finally, the ability of the wall law to model the flow in the tip leakage flow region is proven in terms of wall pressure fluctuations and acoustics in the far-field.
Fichier principal
Vignette du fichier
LAMIDEL_DAVILLER_ROGER_POSSON_2021.pdf (2.63 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03245397 , version 1 (01-06-2021)
hal-03245397 , version 2 (12-09-2022)

Licence

Attribution - NonCommercial - NoDerivatives

Identifiers

Cite

David Lamidel, Guillaume Daviller, Michel Roger, Hélène Posson. Numerical prediction of the aerodynamics and acoustics of a tip leakage flow using Large-Eddy Simulation. International Journal of Turbomachinery, Propulsion and Power, 2021, 6 (3), pp.27. ⟨10.3390/ijtpp6030027⟩. ⟨hal-03245397v2⟩
92 View
115 Download

Altmetric

Share

Gmail Facebook X LinkedIn More