进气道风洞试验分布式流量调节技术研究与试验验证  

Technology research and test verification of distributed flow regulator for inlet test in wind tunnel

作　　者：李方吉 赵清 樊建超 贾霜 荣祥森 郭民 LI Fangji;ZHAO Qing;FAN Jianchao;JIA Shuang;RONG Xiangsen;GUO Min(High Speed Aerodynamics Research Institute of China Aerodynamics Research and Development Center,Mianyang Sichuan 621000,China)

机构地区：[1]中国空气动力研究与发展中心高速空气动力研究所,四川绵阳621000

出　　处：《实验流体力学》2020年第4期74-80,共7页Journal of Experiments in Fluid Mechanics

摘　　要：分布式流量调节将风洞试验中的进气道出口后的流动转化为多个区域的流动,通过调整导流片组合之间的相对位置,改变导流片组合之间不同区域的流通面积,实现流体流量的调节。利用商业软件对节流锥流量调节与测量装置简化模型和分布式流量调节与测量装置简化模型进行了数值模拟,并在FL-24风洞对分布式流量调节方法进行了验证。研究结果表明:分布式流量调节具有较高的流通能力和调节效率,能够有效降低流量调节与测量装置的外形尺寸;进气道喘振前,分布式流量调节与节流锥调节的试验结果一致性较好;分布式流量调节分解了调节装置对上、下游流动的干扰,特别是对上游流动均匀性基本没有影响。The downstream flow of inlet model can be translated into multiple regions by the distributed flow regulator which is composed of two sets of guide vanes.The mass flow is regulated by adjusting the relative position which changes the flow area between the two sets of guide vanes.Two simplified models of the distributed regulator and throttle cone are simulated by commercial software and improved in FL-24 wind tunnel.It is shown that the distributed regulator owns good flow and regulating capacities.Owing to the technology of distributed flow regulator,the size of the flow-meter can be decreased.The results from the distributed regulator are in good agreement with ones from the throttle cone when there is no surge emerging.Also it has little effect on the whole flow field,especially on the upper flow.

关 键 词：进气道 分布式 流量调节 数值模拟 风洞试验 

分 类 号：V211.73[航空宇航科学与技术—航空宇航推进理论与工程]