某高负荷子午加速风机气动设计与数值模拟
Aerodynamic design and numerical investigation of a highly loaded meridian acceleration fan
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摘要: 兼顾民用风机的气动性能与制造成本,采用三种方案(等厚度串列静子方案、叶型串列静子方案和等厚度单排静子方案)对某高负荷子午加速风机进行了气动设计和数值模拟研究.结果表明采用叶型叶片与等厚度叶片相比对风机气动性能的改善很小,近设计点时叶型串列静子方案的压比和效率仅比等厚度串列静子方案高0.18%和0.8%.串列静子抑制了单排静子通道内的角区分离,减小了通道内的堵塞,使等厚度串列静子方案的失速裕度比等厚度单排静子方案提高了11%.综合考虑气动性能与制造成本选定等厚度串列静子方案为风机的最终方案,其不同转速的特性表明该方案的性能完全满足设计指标的要求.Abstract: Considering the aerodynamic performance and manufacturing cost of civil fan,the aerodynamic design and three-dimensional numerical investigation of a highly loaded meridian acceleration fan were performed using three design schemes (uniform thickness tandem stator scheme,airfoil tandem stator scheme and uniform thickness single row stator scheme).The results indicate that the utilization of airfoil blade has few improvements on aerodynamic performance.The total pressure ratio and adiabatic efficiency of the airfoil tandem stator scheme are increased only by 0.18% and 0.8% respectively compared with the uniform thickness tandem stator scheme at near design point.The stall margin of the uniform thickness tandem stator scheme is increased by 11% than the uniform thickness single row stator scheme due to the suppression of the corner separation in the single row stator passage and the reduction of the passage blockage by the tandem stator.Considering aerodynamic performance and manufacturing cost the uniform thickness tandem stator scheme is selected as the final scheme of the fan and its performance characteristics at different rotating speeds can satisfy the design requirements.
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Key words:
- highly loaded /
- meridian acceleration /
- fan /
- tandem blade /
- aerodynamic design
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[1] Wennerstrom A J,Frost G R.Design of a rotor incorporating splitter vanes for a high pressure ratio supersonic axial compressor stage .ARL-TR-74-0110,1974. [2] Wennerstrom A J,Buzzell W A,DeRose R D.Test of a supersonic axial compressor stage incorporating splitter vanes in the rotor .ARL-75-TR-0165,1975 [3] Wennerstrom A J.Highly loaded axial flow compressors:history and current developments[J].Journal of Turbomachinery,1990,112(4):567-578. [4] 陈懋章.风扇/压气机技术发展和对今后工作的建议[J].航空动力学报,2002,17(1):1-15. CHEN Maozhang.Development of fan/compressor techniques and suggestions on further researches[J].Journal of Aerospace Power,2002,17(1):1-15.(in Chinese) [5] Hasegawa H,Matsuoka A,Suga S.Development of highly loaded fan with tandem cascade .AIAA 2003-1065,2003. [6] Sakai Y,Matsuoka A,Suga S,et al.Design and test of transonic compressor rotor with tandem cascade .Tokyo:The International Gas Turbine Congress,TS-108,2003. [7] LI Qiushi,WU Hong,ZHOU Sheng.Application of tandem cascade to design of fan stator with supersonic inflow[J].Chinese Journal of Aeronautics,2010,23(1):9-14. [8] Schuler B J,Kerrebrock J L,Merchant A A,et al.Design analysis,fabrication and test of an aspirated fan stage .ASME GT2000-618,2000. [9] Merchant A A,Drela M,Kerrebrock J L,et al.Design and analysis of a high pressure ratio aspirated compressor stage .ASME GT2000-619,2000. [10] Schuler B J,Kerrebrock J L,Merchant A.Experimental investigation of a transonic aspirated compressor[J].Journal of Turbomachinery,2005,127(2):340-348. [11] Merchant A A,Kerrebrock J L,Adamczyk J J,et al.Experimental investigation of a high pressure ratio aspirated fan stage .ASME GT2004-53679,2004. [12] 金东海,李泯江,桂幸民.高负荷低速轴流风扇数值优化设计与实验研究[J].推进技术,2009,30(6):696-702. JIN Donghai,LI Minjiang,GUI Xingmin.Numerical design optimization of a high-load low-speed axial-flow fan and experimental research[J].Journal of Propulsion Technology,2009,30(6):696-702.(in Chinese) [13] 桂幸民.轴流风扇/压气机可控激波跨音级设计模型研究 .北京:北京航空航天大学,1993. GUI Xingmin.The research on the model of controllable shock wave used in the design of transonic axial fan/compressor stage .Beijing:Beijing University of Aeronautics and Astronautics,1993.(in Chinese) [14] Frost G R,Wennerstrom A J.The design of axial compressor airfoils using arbitrary camber lines .Ohio:Aerospace Research Laboratories,Wright-Patterson Air Force Base,ARL 73-0107,AD 765165,1973. [15] 冀国锋,桂幸民.轴流/离心压气机通用任意中弧造型设计方法研究[J].航空动力学报,2009,24(1):150-156. JI Guofeng,GUI Xingmin.A blading design method for axial/centrifugal compressor airfoils using arbitrary camber lines[J].Journal of Aerospace Power,2009,24(1):150-156.(in Chinese)
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