Email this article 
Optimization of open counter – rotation fan blades on the basis of solving a 3D Navier-Stokes inverse problem with the aim of reducing tonal noise
- Authors: Mileshin V.I.1, Rossikhin A.A.1, Pankov S.V.1, Shchipin S.K.2
-
Affiliations:
- Central Institute of Aviation Motors
- Russian Aircraft Corporation MiG
- Issue: Vol 17, No 1 (2018)
- Pages: 87-99
- Section: AIRCRAFT AND SPACE ROCKET ENGINEERING
- URL: https://journals.ssau.ru/vestnik/article/view/6093
- DOI: https://doi.org/10.18287/2541-7533-2018-17-1-87-99
- ID: 6093
Cite item
Full Text
Abstract
The paper presents some results of gas-dynamic and aero-acoustic optimization of the blade profile of an unducted counter-rotation fan (CRF) by using a 3D inverse problem. It was established on the basis of unsteady-state 3D Navier-Stokes equations that the interaction of tip vortices of the first and second rotors as well as potential interaction of the rotors is one of the key sources of tonal noise. Using the 3D solver of the inverse problem, aerodynamic loads are redistributed along the height of the blades of R1 and R2 rotors so as to reduce tip vortex intensity and potential rotor interaction in case of possible increase of the CRF thrust. To check the acoustic characteristics of the modified CRF, tonal noise modeling was carried out for the original and modified CRFs using CIAM’s aero-acoustic 3DAS solver for the solution of unsteady-state equations. The near acoustic field and directivity diagrams in the far field were found. The fan tonal noise in take-off and landing was decreased by 4 dB without any thrust or efficiency losses.
About the authors
V. I. Mileshin
Central Institute of Aviation Motors
Author for correspondence.
Email: mileshin@ciam.ru
Candidate of Science (Physics and Mathematics)
Head of Division
Russian FederationA. A. Rossikhin
Central Institute of Aviation Motors
Email: rossikhin@ciam.ru
Candidate of Science (Physics and Mathematics.)
Head of Sector
Russian FederationS. V. Pankov
Central Institute of Aviation Motors
Email: pankov@ciam.ru
Head of Department
Russian FederationS. K. Shchipin
Russian Aircraft Corporation MiG
Email: sershchipin@mail.ru
Candidate of Science (Engineering)
Deputy Chief Designer
Russian FederationReferences
- Benzakein M. GEAE Propulsion Vision for the 21st Centure. Proceedings of the International Gas Turbine Congress. 2003. Tokyo, Japan, November 2-7, Keynote Speech 7.
- 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 the ASME Heat Transfer/Fluids Engineering Summer Conference. 2004. V. 2B. P. 871-879. doi: 10.1115/ht-fed2004-56435
- Mileshin V.I., Orekhov I.K., Pankov S.V., Panin V.A. Computational and Experimental Investigation of Flow in Counter Rotating Prop fans Including Revers Thrust Regimes. XVI International Symposium on Air breathing Engines. Cleveland, Ohio, USA: American Institute of Aeronautics and Astronautics, 2003.
- Tam C.K.W., Webb J.C. Dispersion-Relation-Preserving 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. Low-Dissipation and – Dispersion Runge-Kutta Schemes for Computational Acoustics. NASA Report, 1994. 26 p.
- Williams J.E.F., Hawkings D.L. Sound Generated by Turbulence and Surfaces in Arbitrary Motion. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 1969. V. 264, Iss. 1151. P. 321-342. doi: 10.1098/rsta.1969.0031
- Mileshin V.I., Orekhov I.K., Shchipin S.K., Startsev A.N. New 3D inverse Navier-Stokes based method used to Design turbomachinery blade rows. Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference. 2004. V. 2. P. 881-889. doi: 10.1115/HT-FED2004-56436
- Mileshin V.I., Orekhov I.K., Shchipin S.K., Startsev A.N. 3D inverse design of transonic fan rotors efficient for a wide range of RPM. Proceedings of the ASME Turbo Expo. 2007. V. 6. P. 341-352. doi: 10.1115/GT2007-27817
- Mileshin V.I., Orekhov I.K., Fateyev V.A., Shchipin S.K. Effect of tip clearance on flow structure and integral performances of six-stage HPC. Proceedings of ISABE International Conference, ISABE-2007-1179, 2007.
Supplementary files
