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Computational investigation of aerodynamic and acoustic characteristics of an ultrahigh-bypass ratio counter-rotating fan
- Authors: Druzhinin Y.M.1, Mileshin V.I.1, Rossikhin A.A.1
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Affiliations:
- Central Institute of Aviation Motors
- Issue: Vol 17, No 2 (2018)
- Pages: 68-79
- Section: AIRCRAFT AND SPACE ROCKET ENGINEERING
- URL: https://journals.ssau.ru/vestnik/article/view/6220
- DOI: https://doi.org/10.18287/2541-7533-2018-17-2-68-79
- ID: 6220
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Abstract
A computational investigation of aerodynamic characteristics of a model ultrahigh-bypass ratio counter-rotating fan (m = 20) developed at CIAM within the framework of the European Project COBRA (Innovative Counter Rotating Fan System for High Bypass Ratio Aircraft Engine), is presented in the work. The unsteady nature of the flow in a counter-rotating fan was studied; the rotor-rotor interaction intensity and unsteady viscous wake propagation through the axial gap and second rotor blade were analyzed. The results of numerical investigation of the fan tonal noise in the approach mode are also presented. The acoustic calculations were performed using the in-house CIAM code 3DAS. Far-field directivity diagrams for the first 16 harmonics of tonal noise in the front and rear hemisphere, obtained in the calculation, are shown. The results were compared with the respective results of calculation for a model high-bypass ratio counter-rotating fan with a high-bypass ratio m = 10 (designed in VITAL project). Additionally the results were compared with the experimental results for a fan with m = 20.
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About the authors
Ya. M. Druzhinin
Central Institute of Aviation Motors
Author for correspondence.
Email: druzhinin.yar@yandex.ru
Engineer
Russian FederationV. I. Mileshin
Central Institute of Aviation Motors
Email: mileshin@ciam.ru
Doctor of Science (Phys. and Math.)
Head of Division
A. A. Rossikhin
Central Institute of Aviation Motors
Email: rossikhin@ciam.ru
Doctor of Science (Phys. and Math.)
Head of Sector
References
- Fateev V., Mileshin V., Pankov S., Shchipin S. Ducted counter-rotation fan blades optimization based on 3D inverse problem solution aiming at fan gasdynamics improvement. 19th ISABE Conference (ISABE-2009). 2009.
- Lengyel T., Voß C., Schmidt T., Nicke E. Design of a counter rotating fan – an aircraft engine technology to reduce noise and CO2-emissions. 19th ISABE Conference (ISABE 2009). 2009.
- Talbotec J., Vernet M. SNECMA counter rotating turbo fan aerodynamic design logic & tests results. 27th Congress of the International Council of the Aeronautical Sciences. 2010. V. 4. P. 2550-2559.
- Khaletskiy Yu., Mileshin V., Talbotec J., Nicke E. Study on noise of counter rotating fan models at CIAM anechoic chamber. 28th Congress of the International Council of the Aeronautical Sciences. 2012. V. 2. P. 1325-1334.
- Hirsch Ch. Numerical computation of internal and external flows. V. 2. John Wiley & Sons, 1990. 715 p.
- Jameson A. Time dependent calculations using multigrid, with applications to unsteady flows past airfoils and wings. 10th Computational Fluid Dynamics Conference, Fluid Dynamics and Co-located Conferences. 1991. doi: 10.2514/6.1991-1596
- Menter F. Two-equation eddy-viscosity turbulence models for engineering applications. AIAA Journal. 1994. V. 32, Iss. 8. P. 1598-1605. doi: 10.2514/3.12149
- Brailko I.A., Mileshin V.I., Nyukhtikov M.A., Pankov S.V. Computational and experimental investigation of unsteady and acoustic characteristics of counter-rotating fans. Proceedings of 2004 ASME Heat Transfer / Fluids Engineering Summer Conference. 2004. V. 2. P. 871-879. doi: 10.1115/ht-fed2004-56435
- Nyukhtikov M.A., Rossikhin A.A., Sgadlev V.V., Brailko I.A. Numerical method for turbo machinery tonal noise generation and radiation simulation using CAA approach. Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air. 2008. V. 6. P. 887-894. doi: 10.1115/gt2008-51182
- Tam C.K.W., Webb J.C. Dispersion-relation-preserving finite difference schemes for computational acoustics. Journal of Computational Physics. 1993. V. 107, Iss. 2. P. 262-281. doi: 10.1006/jcph.1993.1142
- Hu F.Q., Hussaini M.Y., Manthey J.L. Low-dissipation and low-dispersion Runge-Kutta schemes for computational acoustics. Journal of Computational Physics. 1996. V. 124, Iss. 1. P. 177-191. doi: 10.1006/jcph.1996.0052
- Tyler J.M., Sofrin T.G. Axial flow compressor noise studies. SAE Technical Papers. 1962. doi: 10.4271/620532
- Rossikhin A., Pankov S., Brailko I., Mileshin V. Numerical method for 3D computation of turbomachinery tone noise. International Conference Fan 2012.
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