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Tip-Leakage Flow: a Detailed Simulation with a Zonal Approach

Boudet, Jérôme and Li, Bo and Caro, Joëlle and Jondeau, Emmanuel and Jacob, Marc C. Tip-Leakage Flow: a Detailed Simulation with a Zonal Approach. (2016) In: 22nd AIAA/CEAS Aeroacoustics Conference, 30 May 2016 - 1 June 2016 (Lyon, France).

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Official URL: https://doi.org/10.2514/6.2016-2824

Abstract

The secondary flow generated by the clearance between an isolated airfoil tip and anend-plate is analyzed by means of a zonal large-eddy simulation, in comparison with avail-able experimental data. The flow around the tip clearance is described with full large-eddysimulation, while Reynolds-averaged Navier-Stokes is employed in the rest of the compu-tational domain in order to limit computational cost. The various analyses of the flowcharacteristics (mean velocities, Reynolds stresses, spectra) show a very good agreementbetween the experiment and the simulation. Looking at the mean velocities, an intensetip-leakage vortex is observed on the suction side. The Reynolds stresses are used toevaluate the anisotropy of the vortex. Finally, the spectral content is investigated in thenear-field and the far-field, and the leakage flow is shown to be characterized by a dominantcontribution in the range [0.7 kHz; 7 kH z].

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-02177963
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Institut National des Sciences Appliquées de Lyon - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
Other partners > Ecole Centrale de Lyon (FRANCE)
Laboratory name:
Funders:
Agence Nationale de la Recherche (ANR) - Labex Celya Investissement d'Avenir (ANR-10- LABX-0060/ANR-11-IDEX-0007) - National Science Foundation of China (NSFC) - Grand Equipement National de Calcul Intensif (GENCI) / CINES
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Deposited By: Marc C. JACOB
Deposited On:09 Jul 2019 12:23

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