Application of particle image velocimetry and the background-oriented schlieren technique in the high-enthalpy shock tunnel Göttingen
Application of particle image velocimetry and the background-oriented schlieren technique in the high-enthalpy shock tunnel Göttingen
复制标题
粒子图像测速和背景导向纹影技术在哥廷根高焓激波隧道中的应用
DOI：
10.1007/s00193-011-0314-2
复制
发表时间：
2011
期刊：
影响因子：
2.2
通讯作者：
K. Hannemann
中科院分区：
文献类型：
--
作者：
T. Kirmse;J. Agocs;A. Schröder;J. Martinez Schramm;S. Karl;K. Hannemann
粒子图像测速 (PIV) 和背景导向纹影 (BOS) 技术在德国航空航天中心哥廷根高焓激波隧道中的适用性得到了验证。作为可行性研究的一部分，进行了两个不同的实验。通过 PIV 确定总比焓为 1.5 MJ/kg 的马赫 6 流中通过楔块的速度场，并将结果与数值预测进行比较。 BOS 技术用于研究总比焓为 12 和 22 MJ/kg 的球体激波层中的密度场。使用射线追踪方法，将 BOS 结果与相应数值计算获得的数据进行比较。
The applicability of the particle image velocimetry (PIV) and the background-oriented schlieren (BOS) techniques in the high-enthalpy shock tunnel Göttingen of the German Aerospace Center, DLR is demonstrated. As a part of this feasibility study two different experiments are performed. The velocity field past a wedge in a Mach 6 flow at a total specific enthalpy of 1.5 MJ/kg is determined by means of PIV and the results are compared to numerical predictions. The BOS technique is applied to investigate the density field in the shock layer of a sphere at 12 and 22 MJ/kg total specific enthalpies. Using a ray tracer method, the BOS results are compared to the data obtained by corresponding numerical computations.