Hvasta M G, Kolemen E, Fisher A
Princeton University, Princeton, New Jersey 08544, USA.
Rev Sci Instrum. 2017 Jan;88(1):013501. doi: 10.1063/1.4973421.
Measuring free-surface, liquid-metal flow velocity is challenging to do in a reliable and accurate manner. This paper presents a non-invasive, easily calibrated method of measuring the surface velocities of open-channel liquid-metal flows using an IR camera. Unlike other spatially limited methods, this IR camera particle tracking technique provides full field-of-view data that can be used to better understand open-channel flows and determine surface boundary conditions. This method could be implemented and automated for a wide range of liquid-metal experiments, even if they operate at high-temperatures or within strong magnetic fields.
以可靠且准确的方式测量自由表面液态金属流的速度具有挑战性。本文提出了一种使用红外摄像机测量明渠液态金属流表面速度的非侵入性、易于校准的方法。与其他空间受限的方法不同，这种红外摄像机粒子跟踪技术提供了全场视野数据，可用于更好地理解明渠流并确定表面边界条件。即使在高温或强磁场环境下运行，这种方法也可在广泛的液态金属实验中实现并自动化。
