Density tagging velocimetry
Density tagging velocimetry
复制标题
密度标记测速
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
K. Mulleners
中科院分区：
文献类型：
--
作者：
M. Raffel;R. Hernandez;Benjamin Heine;A. Schröder;K. Mulleners
提出了一种新的光学逐点流速测量技术--密度示踪测速技术。这种新方法是基于检测和随后的跟踪故意插入流中的局部密度变化。包括标记、检测和速度评估的实验实施方式恢复并结合了众所周知的光学测量技术的原理。密度示踪测速法具有在飞行中应用的潜力，并且特别适合于在难以或不希望使用示踪粒子的区域中测量流速。这种新技术的适用性说明了射流测量。
Density tagging velocimetry, a novel optical technique for point-wise measurement of flow velocity is proposed here. This new method is based on the detection and subsequent tracking of a local density variation deliberately inserted in the flow. The experimental implementation comprising tagging, detection, and velocity evaluation reverts to and combines principles of well-known optical measurement techniques. Density tagging velocimetry has the potential for in-flight application and is particularly suited for measuring flow velocities in regions where the use of tracer particles is difficult or undesired. The applicability of this new technique is illustrated by a jet flow measurement.