重型燃气轮机压气机高雷诺数前转捩叶型设计

阙晓斌; 蒋洪德

重型燃气轮机压气机高雷诺数前转捩叶型设计

清华大学热能工程系, 北京 100084

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出版历程
- 收稿日期: 2012-10-18
- 刊出日期: 2013-10-28

Design of high Reynolds number compressor airfoil with early transition for heavy-duty gas turbine

Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

摘要

摘要: 针对重型燃气轮机压气机雷诺数高而导致的转捩位置前移,开发了一种比可控扩散叶型(CDA)损失更小、工作范围更宽的前转捩叶型.采用正问题优化设计方法,将叶型几何参数化、叶片到叶片流场分析与遗传算法相结合,实现了叶型的自动优化.优化目标综合权衡了叶型损失和攻角范围,为减少优化变量的数目,应用了一种特别的叶型几何模型,将厚度分布与中弧线之间进行了一定的关联.优化得到的前转捩叶型的主要特征是吸力面速度峰值的位置前移至距前缘约10%弦长处,叶型中后部的速度变化更为平缓.最后根据优化结果总结了前转捩叶型的设计规律.
- 重型燃气轮机 /
- 多级压气机 /
- 叶型设计 /
- 高雷诺数 /
- 附面层转捩
Abstract: A type of compressor airfoil, characterized by lower losses and wider operating range than conventional controlled diffusion airfoil (CDA), was developed for use in heavy-duty gas turbines, which considered the early boundary layer transition on blade surface induced by high Reynolds number. Direct design process was adopted, in which the parameterization of airfoil geometry and the blade to blade flow solver were integrated into genetic algorithm to facilitate automatic optimization of airfoil. The optimization object was considered as a compromise of airfoil loss and operating range of incidence, and a special airfoil geometry model correlating the thickness distribution with camber line was applied to reduce optimzation variables. The main characteristics of early transition airfoil by optimization are as follows: the suction side velocity maximum moves forward to around 10% of chord, and the velocity distribution in the rear portion is flat. Finally, the design strategy of this type of early transition airfoil was summarized according to the optimization results.
- heavy-duty gas turbine /
- multistage compressor /
- airfoil design /
- high Reynolds number /
- boundary layer transition

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参考文献(15)

[1]	Korn D.Numerical design of transonic cascade [R].[S.l]: Energy Research and Development Adminstration,Research and Development Report,Coo-3077-72,1975.
[2]	Starken H.Performance of controlled diffusion blades [R].Kőln,Germany:Von Karman Institute of Fluid Dynamics,Lecture Series 1992-02,1989.
[3]	Schreiber H A,Steinxert W,Kusters B.Effects of Reynolds number and free-stream turbulence on boundary layer transition in a compressor cascade[J].Journal of Turbomachinery,2000,124(1):1-9.
[4]	Kőller U,Müning R,Küsters B,et al.Development of advanced compressor airfoils for heavy-duty gas turbines:Part I design and optimization [R].ASME Paper 99-GT-95,1999.
[5]	Küsters B,Schreiber H-A,Kőller U,et al.Development of advanced compressor airfoils for heavy-duty gas turbines:Part Ⅱ experimental and theoretical analysis [R].ASME Paper 99-GT-96,1999.
[6]	程荣辉,周拜豪,余华蔚.定制叶型技术及其在压气机设计中的应用[J].燃气涡轮试验与研究,2000,13(1):15-22. CHENG Ronghui,ZHOU Baihao,YU Huawei.Custom tailoring airfoil and its application in compressor design[J].Gas Turbine Experiment and Research,2000,13(1):15-22.(in Chinese)
[7]	Hicks R M,Vanderplaats G N.An assessment of airfoil design by numerical optimization [R].NASA-TM-X-3092, 1974.
[8]	Sanger N L.The use of optimization technique to design controlled diffusion compressor blading[J].Journal of Engineering for Power,1983,105(2):256-264.
[9]	林保真,蒋浩兴,周盛.一种削弱跨音叶栅流场中激波强度的数值方法[J].航空学报,1983,4(1):53-61. LIN Baozhen,JIANG Haoxing,ZHOU Sheng.A numerical method for weakening shock wave strength in transonic cascade flow fields[J].Acta Aeronautica et Astronautica Sinica,1983,4(1):53-61.(in Chinese)
[10]	Holland J H.Adaptation in natural and artificial systems:an introductory analysis with applications to biology,control,and artificial intelligence[M].Massachusetts,US:Massachusetts Insititute of Technology Press,1992.
[11]	Goldberg D E.Genetic algorithms in search,optimization,and machine learning[M].Massachusetts,US:Addison-Wesley Publishing Company,1989.
[12]	De Jong K.An analysis of the behavior of a class of genetic adaptive system [D].Michigan,US:University of Michigan,1975.
[13]	Giles M.Newton solution of steady two-dimensional transonic flow [R].Massachusetts,US:Gas Turbine Laboratory,Report No.186,1985.
[14]	Drela M.Two-dimensional transonic aerodynamic design and analysis using the Euler and boundary layer equations [R].Massachusetts,US:Gas Turbine Laboratory,Report No.187,1986.
[15]	Steinert W,Eisenberg B,Starken H,et al.Design and testing of a controlled diffusion airfoil for industrial axial flow compressor application[J].Journal of Turbomachinery,1991,113(4):583-590.