空气涡轮起动机性能数值仿真和试验研究  

Numerical Simulation and Experimental Investigation on Performance of Air Turbine Starter

作　　者：陈靖华 徐伟祖 李传鹏[3] CHEN Jinhua;XU Weizu;LI Chuanpeng(Laboratory of Science and Technology on Aero Electromechanical System,AVIC Nanjing Engineering Institute of Aircraft Systems,Nanjing 211106,China;Nanjing Puguo Technology Co.,Ltd.,Nanjing 210016,China;College of Energy and Power Engineering,Nanjing University of Aeronautics&Astronautics,Nanjing 210016,China)

机构地区：[1]中国航空工业集团公司金城南京机电液压工程研究中心航空机电系统综合航空科技重点实验室,南京211106 [2]南京普国科技有限公司,南京210016 [3]南京航空航天大学能源与动力学院,南京210016

出　　处：《南京航空航天大学学报》2022年第4期654-661,共8页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：某重大国防预研项目;国家科技重大专项(2017-Ⅱ-0004-0017)。

摘　　要：为提高某型空气涡轮起动机的性能,采用数值仿真和试验相结合的方法,开展了某型空气涡轮起动机气动性能和流场仿真的研究,并完成了优化设计。数值仿真结果表明,进气弯管内侧存在明显的流动分离,导致下游流场均匀性恶化,导向器叶片和转子叶片表面均存在一定的附面层分离,排气框架未充分考虑流动的顺畅性,最终造成空气涡轮起动机性能偏低。数值仿真和试验结果的对比表明,数值仿真获得的空气流量比试验低1.90%左右,涡轮功率高1.04%左右。数值仿真和试验符合较好,采用这种数值仿真方法研究空气涡轮起动机具有较高的准确性,对导向器叶片进行了优化设计,显著提升了空气涡轮的性能,优化后功率比原型增加了14.2%。In order to improve the performance of an air turbine starter,the aerodynamic performance and flow field details of the air turbine starter are studied by combining numerical simulation and experiment.The numerical simulation results show that there is obvious flow separation inside the inlet elbow,leading to poor uniformity of the downstream flow field.There is a certain boundary layer separation on the surface of the guide vane and rotor blade,and the flow field is relatively poor because the smooth flow is not fully considered in the exhaust frame.The comparison between the numerical simulation results and the experimental results shows that the air flow rate obtained by numerical simulation is about 1.90%lower than that of the experiment,and the turbine power is about 1.04%higher.Generally speaking,the numerical simulation is in good agreement with the experiment,and this numerical simulation method has a high accuracy to study the air turbine starter.The performance of the air turbine is significantly improved by the optimized design of the guide vane.The power of the air turbine is increased by 14.2%compared with the prototype.

关 键 词：空气涡轮 起动机 数值仿真 试验 性能 

分 类 号：V225[航空宇航科学与技术—飞行器设计] V228