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| 概要 |
The flow of superfluid helium through a tube with different temperatures at the ends differs considerably from that of a Newtonian fluid. The strong dependence of the thermodynamic properties on tempe...rature, the internal convection mechanism and the structure of superfluid turbulence cause unusual flows. The equations for the flow of He II are integrated using a one-dimensional, two-fluid model to study the flow in a tube of small diameter. Variable properties of He II and energy dissipation due to mutual friction are fully taken into consideration. The occurrence of maxima of pressure and temperature suggests that the interpretation of some of the experimental data in the literature should be reconsidered.続きを見る
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