低压涡轮的气动-声学三维数值优化: 倾斜导叶策略

doi:10.7527/S1000-6893.2013.0028

Abstract

Abstract:

The low pressure turbine of an aircraft is an important engine noise source at approach power, and there is a high requirement on its aerodynamic efficiency. The noise level of a low pressure turbine must be considered together with its aerodynamic performance to achieve a significantly quiet low pressure turbine design. In this paper some insights are presented on three-dimensional aerodynamic-acousitc optimization for a high performance and low noise level turbine. First, a steady computational fluid dynamics (CFD) simulation is made to evaluate the aerodynamic performance with three-dimensional design variations. Then the unsteady aerodynamic effects and tonal noise level are obtained using unsteady CFD calculation combined with a triple-plane pressure (TPP) matching strategy. Finally an optimal design plan is selected. Taking as an example the calculation of the last stage of a GE-E³ (Energy Efficient Engine) low pressure turbine, the potential of using lean vanes as a turbine tonal noise reduction strategy is numerically simulated. The results show that when the positive lean angle is smaller than 19° the single stage turbine performance is improved, with a maximum enhancement of efficiency of 0.3%. Evaluation of tonal noise shows that positive lean increases the noise level, for it changes the characteristics of vane wakes, which means this method cannot be employed for noise reduction. The numerical simulation indicates that this three-dimensional optimization method can reflect simultaneously the effects of detailed three-dimensional changes of a blade on its aerodynamic and acoustic performance, and it can be effectively used in the aerodynamic-acousitc optimization process.

Key words: low pressure turbine, aerodynamics, acoustics, lean, tonal noise

CLC Number:

V231

ZHAO Lei, QIAO Weiyang, TAN Hongchuan. Aerodynamic-acoustic Three-dimensional Numerical Optimization of Low Pressure Turbine: Lean Vane Strategy[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(2): 246-254.

References

[1] Qiao W Y. Aero-engine aeroacousitcs. Beijing: Beihang University Press, 2010: 1-8. (in Chinese) 乔渭阳. 航空发动机气动声学. 北京: 北京航空航天大学出版社, 2010: 1-8.

[2] Howell R J. Wake-separation bubble interactions in low Reynolds number turbomachinery. Cambridge, UK: Engineering Department Cambridge University, 1999.

[3] Smith M J T, Bushell K W. Turbine noise-its signification in the civil aircraft noise problem. ASME Paper, 69-WA/GT-12, 1969.

[4] Krejsa E A, Valerino M F. Interim prediction for turbine noise. NASA TM X-73566, 1976.

[5] Kurbatskii K A, Mankbadi R R. Review of computational aeroacoustics algorithms. International Journal of Computational Fluid Dynamics, 2004, 18(6): 533-546.

[6] Ferrecchia A, Dawes W N, Dhanasekaran P C. Compressor rotor wakes and tone noise study. 9th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2003.

[7] Polacsek C, Burguburu S, Redonnet S, et al. Numerical simulations of fan interaction noise using a hybrid approach. 11th AIAA/CEAS Aeroacoustics Conference (26th AIAA Aeroacoustics Conference), 2005.

[8] Grace S M, Sondak D L, Eversman W, et al. Hybrid prediction of fan tonal noise. 14th AIAA/CEAS Aeroacoustics Conference (29th AIAA Aeroacoustics Conference), 2008.

[9] Rumsey C L. Computation of acoustic waves through sliding-zone interfaces. AIAA Journal, 1997, 35(2): 263- 268.

[10] Zhao L, Qiao W Y. Effect of numerical dissipation and extended-grid on sound propagation in computational fluid dynamics. Journal of Aerospace Power, 2012, 25(12): 2716-2720.(in Chinese) 赵磊, 乔渭阳. CFD中数值耗散和延伸边界对声传播的影响. 航空动力学报, 2010, 25(12): 2716-2720.

[11] Wilson A G. A method for deriving tone noise information from CFD calculations on the aeroengine fan stage. NATO RTO-AVT Symposium on Developments in Computational Aero-And Hydro Acoustics, 2001.

[12] Ovenden N C, Rienstra S W. Mode-matching streategies in slowly varying engine ducts. 9th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2003.

[13] Rienstra S W. Sound transmission in slowly varying circular and annular lined ducts with flow. Journal of Fluid Mechanics, 1999, 380(1): 279-296.

[14] Weckmüeller C, Guerin S, Ashcroft G. CFD-CAA coupling applied to DLR UHBR-fan: comparison to experimental data. 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), 2009.

[15] Steger M, Michel U, Ashcroft G, et al. Tone noise reduction of a turbofan engine by additional aerodynamical blade forces. 16th AIAA/CEAS Aeroacoustics Conference, 2010.

[16] Zhao L, Qiao W Y, Mu Z Q, et al. The simulation of turbomachinery tone noise based on in-duct mode matching methodX. 16th AIAA/CEAS Aeroacoustics Conference, 2010.

[17] Woodward R P, Elliott D M, Hughes C E, et al. Benefits of swept and leaned stators for fan noise reduction. 37th Aerospace Sciences Meeting & Exhibit, 1999.

[18] Envia E, Nallasamy M. Design selection and analysis of a swept and leaned stator concept. Journal of Sound and Vibration, 1999, 228(4): 793-836.

[19] Elhadidi B, Atassi H M. Passive noise control by blade lean and sweep. 10th AIAA/CEAS Aeroaoustics Conference, 2004.

[20] Cooper A J, Peake N. Rotor-stator interaction noise in swirling flow: stator sweep and lean effects. AIAA Journal, 2006, 44(5): 981-991.

[21] Wang Z Q, Zheng Y. Research status and development of the bowed-twisted blade for turbomachines. Engineering Science, 2000, 2(6): 40-48. (in Chinese) 王仲奇, 郑严. 叶轮机械弯扭叶片的研究现状及发展趋势. 中国工程科学, 2000, 2(6): 40-48.

[22] Chen H S, Tan C Q, Atsumasa Y, et al. Experimental investigation on the effects of positive blade bowing in turbine stator cascades with low aspect ratio. Chinese Journal of Mechanical Engineering, 2005, 41(2): 65-70, 76. (in Chinese) 陈海生, 谭春青, Atsumasa Yamamoto, 等. 低展弦比涡轮静叶栅叶片正弯曲作用的试验研究. 机械工程学报, 2005, 41(2): 65-70, 76.

[23] Cherry D G, Gay C H, Lenahan D T. Energy efficient engine. Low pressure turbine test hardware detailed design report. NASA CR-167956, 1982.

[24] Tyler J M, Sofrin T G. Axial flow compressor noise studies. SAE Trans, 1962, 70: 309-332.

Aerodynamic-acoustic Three-dimensional Numerical Optimization of Low Pressure Turbine: Lean Vane Strategy

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