Email this article Evolution of the fan casing treatment design of the counter rotating turbofan with the purpose of increasing its acoustic performance
- Authors: Pochkin Y.S.1, Khaletskiy Y.D.1, Mileshin V.I.1
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Affiliations:
- CIAM, Moscow, Russia.
- Issue: Vol 4, No 1 (2018): 22.02.2018
- Pages: 27-35
- Section: Articles
- Published: 22.02.2018
- URL: https://dynvibro.ru/dynvibro/article/view/6495
- DOI: https://doi.org/10.18287/2409-4579-2018-4-1-27-35
- ID: 6495
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Abstract
The results of an experimental study of the effects of several slot type casing treatment (STCT) configurations on ducted counter rotating fan model (DCRF) noise are given in present work. The casing treatment design parameters such as lattice duty cycle and the cavity height were varied. It is shown that the most important parameter is the duty factor of the lattice. The configuration of STCT, which provides the greatest reduction of sum sound power level of the fan model was installed over the second rotor only and had the highest duty factor.
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About the authors
Yaroslav Sergeevich Pochkin
CIAM, Moscow, Russia.
Email: yurikhalet@ciam.ru
Engineer of "The jet engine compressors department"
Russian FederationYuriy Daniilovich Khaletskiy
CIAM, Moscow, Russia.
Author for correspondence.
Email: yurikhalet@ciam.ru
Doctor of Engineering (DE), head of acoustics of "The jet engine compressors department"
Russian FederationViktor Ivanovich Mileshin
CIAM, Moscow, Russia.
Email: mileshin@ciam.ru
Doctor of Philosophy (PhD), head of "The jet engine compressors department"
Russian FederationReferences
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