1. 空气动力学国家重点实验室,绵阳,621000
2. 中国空气动力研究与发展中心 高速空气动力研究所,绵阳,621000
李强(1990-), 男, 山东枣庄人, 硕士, 助理工程师, 研究方向:试验空气动力学.E-mail:Lq370402@163.com
纸质出版:2019
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李强, 刘大伟, 许新, 陈德华. CHN-T1标模2.4米风洞气动特性试验研究[J]. 空气动力学学报, 2019, 37(2): 337-344.
LI Qiang, LIU Dawei, XU Xin, et al. Experimental study of aerodynamic characterictics of CHN-T1 standard model in 2.4 m transonic wind tunnel[J]. 2019, 37(2): 337-344.
李强, 刘大伟, 许新, 陈德华. CHN-T1标模2.4米风洞气动特性试验研究[J]. 空气动力学学报, 2019, 37(2): 337-344. DOI: 10.7638/kqdlxxb-2018.0099.
LI Qiang, LIU Dawei, XU Xin, et al. Experimental study of aerodynamic characterictics of CHN-T1 standard model in 2.4 m transonic wind tunnel[J]. 2019, 37(2): 337-344. DOI: 10.7638/kqdlxxb-2018.0099.
大飞机标模可用来校验风洞流场品质,检验和提高大型飞机风洞试验数据质量,标模的外形特点及其气动特性能否反应现代大飞机设计特点尤为重要。气动中心前期已完成了一套大展弦比飞机标模CHN-T1的设计研制,为了验证设计结果,在2.4米跨声速风洞中进行了一期验证试验,试验
Ma
数范围0.40~0.90,模型名义迎角-6°~15°,侧滑角-3°~12°,雷诺数
Re
=(3.3~7.5)×10
6
。试验内容包括纵横航向基本特性试验、重复性精度试验、变雷诺数试验、转捩对比试验、流谱观察试验和变形测量试验。结果表明,该飞机外形具有良好的升阻特性,符合现代大展弦比飞机的典型气动特征,可用于2.4m跨声速风洞大型飞机标模试验数据体系建设。
Large aircraft standard model can used in validating the flow field quality of transonic wind tunnels
checking and improving the experimental data quality. It is important that the outline characteristics and aerodynamic performance of standard model reflect the design of modern large aircraft. A new high-aspect-ratio aircraft model was designed by CARDC
and a validation test was conducted in 2.4 m transonic wind tunnel with test Mach number from 0.40 to 0.9
with the angle of attack ranges from -6° to 15°
side slip angle from -3° to 12°
and Reynolds number from 3.3×10
6
to 7.5×10
6
. The test contents consist of basic char
acteristic test
repeatability test
Reynolds number variation test
transition method comparison test
surface oil flow visualization test
and model deformation test. The results indicate that
the model designed shows good lift-to-drag characteristics
meeting the typical aerodynamic characteristics of modern high-aspect-ratio aircraft
and can be used in the construction of large aircraft data system in 2.4m transonic wind tunnel.
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HE B H, LI W, LIU D W, Technology Research of Complicated Configuration Oil-flow Experimentation of High Speed Wind Tunnel[R].Mianyang: CARDC, 2017.(in Chinese)
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