Φ5m立式风洞尾旋试验技术  

Free-spin test technique in Φ5m vertical wind tunnel in CARDC

作　　者：祝明红[1] 王勋年[2] 李宝[2] 刘义信[2] 蒋敏[2] 马军[2] 张钧[2] 

机构地区：[1]西北工业大学,西安710072 [2]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《实验流体力学》2007年第3期49-53,共5页Journal of Experiments in Fluid Mechanics

摘　　要：中国空气动力研究与发展中心于2005年建成了Φ5m立式风洞。该风洞的主要功能是开展飞机自由尾旋风洞实验研究。因此,飞机尾旋试验研究与风洞建设同步进行,并于Φ5m立式风洞建成时就进行了一期民机的自由尾旋试验。笔者着重介绍了本期飞机自由尾旋试验的试验方法、试验设备、图像采集与处理、动力相似模型设计以及飞机尾旋特性分析。通过LE-500飞机中俄自由尾旋对比试验结果分析表明:两座立式风洞中的同一飞机模型的尾旋试验结果具有较好的一致性,中国空气动力研究与发展中心Φ5m立式风洞具备了开展飞机自由尾旋试验研究的能力。The Φ5m vertical wind tunnel has been built in China Aerodynamics Research ＆ Development Center in 2005. The main function of the Φ5m vertical wind tunnel is to conduct free-spin test, so the freespin test technique has been developed while the wind tunnel was being built. The first-free spin test was carried out after the Φ5m vertical wind tunnel was built up. The free-spin test methods, equipments and processing of the motive images of spin are presented in this paper. The comparative spin test of LE-500 airplane was carried out. It shows that the spin characteristics of LE-500 airplane in Φ5m vertical wind tunnel is in agree- ment with that of T-105 vertical wind tunnel in Russia. The test results show that the Φ5m vertical wind tunnel has the capabihty to do the investigation of the free-spin of airplane.

关 键 词：立式风洞 尾旋试验技术 尾旋特性 飞机模型 

分 类 号：V211.748[航空宇航科学与技术—航空宇航推进理论与工程]