Numerical Investigation of Thermal Counterflow of He II Past Cylinders - Archive ouverte HAL
Article Dans Une Revue Physical Review Letters Année : 2017

Numerical Investigation of Thermal Counterflow of He II Past Cylinders

Résumé

We investigate numerically, for the first time, the thermal counterflow of superfluid helium past acylinder by solving with a finite volume method the complete so-called two-fluid model. In agreement withexisting experimental results, we obtain symmetrical eddies both up- and downstream of the obstacle. Thegeneration of these eddies is a complex transient phenomenon that involves the friction of the normal fluidcomponent with the solid walls and the mutual friction between the superfluid and normal components.Implications for flow in a more realistic porous medium are also investigated.
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hal-01582409 , version 1 (05-12-2023)

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Cyprien Soulaine, Michel Quintard, Bertrand Baudouy, Rob van Weelderen. Numerical Investigation of Thermal Counterflow of He II Past Cylinders. Physical Review Letters, 2017, 118 (7), pp.074506. ⟨10.1103/PhysRevLett.118.074506⟩. ⟨hal-01582409⟩
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