Statistical Measurement of Counterflow Turbulence in Superfluid Helium-4 Using $$\hbox {He}_2^*$$He2∗ Tracer-Line Tracking Technique
Statistical Measurement of Counterflow Turbulence in Superfluid Helium-4 Using $$\hbox {He}_2^*$$He2∗ Tracer-Line Tracking Technique
复制标题
使用 $$hbox {He}_2^*$$He2∗ 示踪线跟踪技术对超流 Helium-4 中的逆流湍流进行统计测量
DOI：
10.1007/s10909-016-1681-y
复制
发表时间：
2017
影响因子：
2
通讯作者：
W. Vinen
中科院分区：
文献类型：
--
作者：
J. Gao;E. Varga;W. Guo;W. Vinen
我们报告了一个系统的研究的初步结果，在稳态量子湍流的超流体$$^{4}\hbox {He}$$4He使用高精度的流动可视化技术的基础上跟踪细线的$$\hbox {He}_2^{*}$$He2分子示踪剂的热逆流的正常流体组分的流动。非平凡的剖面的平均速度和湍流脉动的整个通道观察到复杂的温度和热通量的依赖性。然而，平均湍流强度对速度的依赖性很弱，主要受温度控制。
We report preliminary results of a systematic study of the flow of normal fluid component in steady-state quantum turbulence in thermal counterflow of superfluid $$^{4}\hbox {He}$$4He using a high-precision flow visualisation technique based on the tracking of thin lines of $$\hbox {He}_2^{*}$$He2∗ molecular tracers. Non-trivial profiles of mean velocity and turbulent fluctuation across the channel are observed with complicated temperature- and heat flux-dependencies. Mean turbulence intensity, however, depends on velocity only very weakly and is controlled primarily by the temperature.
影响因子：
3.7
作者：
Marakov, A.;Gao, J.;Vinen, W. F.
通讯作者：
Vinen, W. F.