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Numerical assessment of fan blades screen effect on fan/OGV interaction tonal noise

Article dans une revue avec comité de lecture
Author
FOULQUIÉ, Charles
1003528 Laboratoire d'Ingénierie des Fluides et des Systèmes Énergétiques [LIFSE]
KHELLADI, Sofiane
1003528 Laboratoire d'Ingénierie des Fluides et des Systèmes Énergétiques [LIFSE]
DELIGANT, Michael
1003528 Laboratoire d'Ingénierie des Fluides et des Systèmes Énergétiques [LIFSE]
RAMÍREZ, Luis
1006160 Universidade da Coruña, España
NOGUEIRA, Xesús
1006160 Universidade da Coruña, España
MARDJONO, Jacky
466344 Safran Aircraft Engines

URI
http://hdl.handle.net/10985/19543
DOI
10.1016/j.jsv.2020.115428
Date
2020
Journal
Journal of Sound and Vibration

Abstract

This work deals with sound generation and transmission in a fan stage. The study is done on a subsonic Fan stage and interaction noise between the fan wakes and the Outlet Guide Vanes (OGV) is considered. For this purpose, the Linearized Euler Equations (LEE) are solved with a steady axisymmetric flow. The acoustic sources are modelled by a scattering approach. Numerical simulations are carried out in an unwrapped cylindrical layer using a high-order finite volume solver. In order to explicitly take into account the moving fan blades into the propagation medium, a high-resolution sliding mesh technique is used. The simulation results, which highlight the screen effect of moving fan blades on fan/OGV interaction tones, are consistent with analytical literature.

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