Numerical assessment of fan blades screen effect on fan/OGV interaction tonal noise
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Numerical assessment of fan blades screen effect on fan/OGV interaction tonal noiseAuthor(s)
Date
2020Citation
Foulquié, C., Khelladi, S., Deligant, M., Ramírez, L., Nogueira, X., Mardjono, J. (2020). Numerical assessment of fan blades screen effect on fan/OGV interaction tonal noise. Journal of Sound and Vibration, 481, 115428. https://doi.org/10.1016/j.jsv.2020.115428
Abstract
[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.
Keywords
Aeroacoustics
Turbojet fan noise
Outlet guide vane
Turbomachines
Linearized Euler equations
Screen effect
Fan
High order finite volumes
Turbojet fan noise
Outlet guide vane
Turbomachines
Linearized Euler equations
Screen effect
Fan
High order finite volumes
Description
Versión aceptada de https://doi.org/10.1016/j.jsv.2020.115428
Editor version
Rights
Atribución-NoComercial-SinDerivadas 3.0 España