官泄涡扇13推力加大型,流量增加7%,推力达100千牛

中文科技期刊数据库>期刊导航>航空动力学报>2012年10期> 相似设计在某风扇改型设计中的应用相似设计在某风扇改型设计中的应用Application of similitude theory in modified design of a fan文献传递收藏本页导出题录作　　者：冀国锋[1]王华青[1]桂幸民[2]邓少春[1]JI Guo-feng,WANG Hua-qing,GUI Xing-min,DENG Shao-chun（1.Guizhou Aero-engine Research Institute, Aviation Industry Corporation of China,Guiyang 550081,China; 2.School of Jet Propulsion,Beijing University of Aeronautics and Astronautics, Beijing 100191,China）机构地区：[1]中国航空工业集团公司贵州航空发动机研究所,贵阳550081 [2]北京航空航天大学能源与动力工程学院,北京100191出　　处：《航空动力学报》EICASCSCD2012年第27卷第10期 2254-2261页,共8页Journal of Aerospace Power摘　　要：针对某涡扇发动机推力增人的动力需求，在充分分析原型风扇性能和流场的基础上，对原型风扇进行了改型设计.改型设计的方法采用“轴流/离心压气机通用叶片造型设计系统”，依据相似理论，在保证第2级风扇进口的相似准则和原型一致，即保证改型与原型第2级风扇在进口的换算流量和换算转速相等的前提下，来增大第1级风扇的流量和压比.经过三维流场计算和分析结果表明：在风扇转速提高到1.011的情况下流量提高到1.071压比提高到1.074，效率提高到1.029，裕度比原型提高了0.8%达到了性能指标的要求改型设计结果比较理想.总体对风扇的性能和整机匹配性分析和评估表明：该风扇改型设计方案能够满足该涡扇发动机推力增大的需求.A modified design of a fan was described,on the basis of enough performance and flow field analysisof original fan,in order to satisfy themore thrust requirement of a turbo-fan engine.The modified design method was： the design tool was ＂a general blading design system and its application for axial/centrifugal compressor＂.According to the similitude theory,at the precondition of the equivalence of converse mass flow and converse revolution speed at the second stage inlet,the increase of the massflow was growing with the pressureratio.By CFD computation and analysis,all the performances met the requirement and the design result was perfect.The results showthat as the speed of the fan increases 1.1 percent,the mass flow increases 7.1 percent,the pressure ratio increases 7.4 percent,the efficiency increases 2.9percent,and the stall marge increases 0.8 percent.Analysis and valuation of the performance and matching characteristic indicate that this design can satisfy the more thrust requirement of the turbo-fan engine.关 键 词：风扇相似准则气动设计改型设计换算流量换算转速
http://lib.cqvip.com/qk/91591X/201210/44013204.html中文科技期刊数据库>期刊导航>航空动力学报>2012年10期> 相似设计在某风扇改型设计中的应用相似设计在某风扇改型设计中的应用Application of similitude theory in modified design of a fan文献传递收藏本页导出题录作　　者：冀国锋[1]王华青[1]桂幸民[2]邓少春[1]JI Guo-feng,WANG Hua-qing,GUI Xing-min,DENG Shao-chun（1.Guizhou Aero-engine Research Institute, Aviation Industry Corporation of China,Guiyang 550081,China; 2.School of Jet Propulsion,Beijing University of Aeronautics and Astronautics, Beijing 100191,China）机构地区：[1]中国航空工业集团公司贵州航空发动机研究所,贵阳550081 [2]北京航空航天大学能源与动力工程学院,北京100191出　　处：《航空动力学报》EICASCSCD2012年第27卷第10期 2254-2261页,共8页Journal of Aerospace Power摘　　要：针对某涡扇发动机推力增人的动力需求，在充分分析原型风扇性能和流场的基础上，对原型风扇进行了改型设计.改型设计的方法采用“轴流/离心压气机通用叶片造型设计系统”，依据相似理论，在保证第2级风扇进口的相似准则和原型一致，即保证改型与原型第2级风扇在进口的换算流量和换算转速相等的前提下，来增大第1级风扇的流量和压比.经过三维流场计算和分析结果表明：在风扇转速提高到1.011的情况下流量提高到1.071压比提高到1.074，效率提高到1.029，裕度比原型提高了0.8%达到了性能指标的要求改型设计结果比较理想.总体对风扇的性能和整机匹配性分析和评估表明：该风扇改型设计方案能够满足该涡扇发动机推力增大的需求.A modified design of a fan was described,on the basis of enough performance and flow field analysisof original fan,in order to satisfy themore thrust requirement of a turbo-fan engine.The modified design method was： the design tool was ＂a general blading design system and its application for axial/centrifugal compressor＂.According to the similitude theory,at the precondition of the equivalence of converse mass flow and converse revolution speed at the second stage inlet,the increase of the massflow was growing with the pressureratio.By CFD computation and analysis,all the performances met the requirement and the design result was perfect.The results showthat as the speed of the fan increases 1.1 percent,the mass flow increases 7.1 percent,the pressure ratio increases 7.4 percent,the efficiency increases 2.9percent,and the stall marge increases 0.8 percent.Analysis and valuation of the performance and matching characteristic indicate that this design can satisfy the more thrust requirement of the turbo-fan engine.关 键 词：风扇相似准则气动设计改型设计换算流量换算转速
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