Statistical Measurement of Counterflow Turbulence in Superfluid Helium-4 Using He2 Tracer-Line Tracking Technique
摘要：
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 He using a high-precision flow visualisation technique based on the tracking of thin lines of He_2^{*} 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.
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DOI：
10.1007/s10909-016-1681-y
被引量：
年份：
2016
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