Development of superfluid shock tube facility
Development of superfluid shock tube facility
复制标题
超流体激波管装置的开发
DOI：
10.1007/978-1-4757-9047-4_174
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
S. Teraoka
中科院分区：
文献类型：
--
作者：
H. Nagai;M. Murakami;H. Yang;N. Takano;S. Teraoka
超流激波管装置是研究低温热流体动力学现象的通用工具。激波管的设计是将充满He II的试验段浸入超流氦中。该设备的一个特点是，气动激波管的驱动和控制与快速打开阀（MO阀）。它能够使冲击波与其他目标瞬态现象同步放电。通过在实验段内的蒸汽-He Ⅱ自由表面上撞击气体动力学激波，可以研究超流氦中的一些波动现象，如热激波和压缩激波，以及穿过λ线（He I-He II）和穿过He II-固体氦相边界的相变现象。利用压力传感器和温度传感器，采用激光束折射法，并借助于一些光学可视化方法，测量了He Ⅱ中的目标物理现象。在本研究中，一般的热流体动力学性能进行了研究，以验证在广泛的实验研究的有效性。
The superfluid shock tube facility has been developed as a versatile tool for general researches in low-temperature thermo-fluid dynamic phenomena. The shock tube was designed to be operated with the He II-filled test section immersed in superfluid helium. A special feature of the facility is that the gas dynamic shock tube is driven and controlled with a quick-opening valve (MO-valve). It enables a synchronized discharge of a shock wave with other target transient phenomena. Some wave phenomena such as a thermal shock and a compression shock waves in superfluid helium, and phase transition phenomena across the λ-line (He I-He II) and across the He II-solid helium phase boundary can be investigated by impinging a gas dynamic shock wave onto a vapor-He II free surface in the test section. The target physical phenomena in He II are measured by pressure transducers and superconductive temperature sensors, by applying laser beam refraction method, and with the aid of some optical visualization methods. In the present study, the general thermo-fluid dynamic performance are investigated to verify the validity in wide range of experimental researches.