Stereoscopic Particle Image Velocimetry Flowfield Investigation of an Unmanned Combat Air Vehicle

Stereoscopic Particle Image Velocimetry Flowfield Investigation of an Unmanned Combat Air Vehicle
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无人作战飞行器的立体粒子图像测速流场研究

DOI：
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发表时间：
2012
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通讯作者：
J. Pruvost
J. Pruvost
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文献类型：
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作者：
E. Roosenboom;R. Konrath;A. Schröder;D. Pallek;D. Otter;S. Morgand;A. Gilliot;J. Monnier;J. L. Roy;C. Geiler;J. Pruvost

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本文采用体视粒子图像测速技术（PIV）对某型无人战斗机（UCAV）模型的静、动态流场进行了一体化试验研究。在RTO-AVT 161的范围内，SACCON（稳定性和控制配置）模型用于分析协同设计标准，并通过在设计链的早期集成计算和实验分析来减少设计阶段的时间尺度。为了提供该模型的速度场信息，ONERA（法国航空航天实验室）和DLR（德国航空航天中心）进行了联合测量活动。ONERA的PIV结果集中在UCAV的前部，DLR的PIV结果集中在尾部流场，以及俯仰模型的动态PIV测量。组合测量能够在模型的整个长度上的多个平面中实现流场的可视化和量化。本文介绍了前、后部流场的结果。流的拓扑结构被描述为依赖于攻角的静态情况。动态测量的结果突出了两种俯仰情况下流场的差异，这两种俯仰情况是作为相位角的函数的不同俯仰幅度。
Stereoscopic Particle Image Velocimetry (PIV) has been applied in an integrated design for the experimental investigation of a static and dynamic flow field on an Unmanned Combat Air Vehicle (UCAV) model. Within the scope of RTO-AVT 161 the SACCON (Stability And Control CONfiguration) model is used for analyzing synergistic design criteria and to reduce the timescale of the design phase by integrating computational and experimental analyses early in the design chain. In order to supply velocity field information on this model a joint measurement campaign was conducted by ONERA (the French Aerospace Lab) and DLR (German Aerospace Center). The ONERA PIV results focused on the forward part of the UCAV, the DLR PIV results focused on the aft flow field, as well as dynamic PIV measurements at a pitching model. The combined measurements enable the visualization and quantification of the flow field in several planes over the whole length of the model. This paper describes the results of the forward and the aft flow fields. The flow topology is described for the static case in dependency of the angle of attack. The results of the dynamic measurement highlight differences in the flow fields at two pitching cases of different pitch amplitude as function of the phase angle.