In this paper, the velocity profile of the normal component in the stationary flow of turbulent superfluid helium inside a cylindrical channel is determined, making use of a one-fluid model with internal variables derived from Extended Thermodynamics. In the hypothesis of null barycentric velocity of the fluid (the so-called counterflow situation) it is seen that, in the presence of a sufficiently high vortex length density, the velocity profile of the normal component becomes very flat in the central region of the channel.Thus, a central flat profile of the normal fluid does not necessarily imply that the flow of the normal component is turbulent.
|Numero di pagine||18|
|Rivista||Zeitschrift fur Angewandte Mathematik und Physik|
|Stato di pubblicazione||Published - 2014|
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