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Abstract The attenuation of second sound is investigated in flow conditions in a capillary. In particular results for “pure” superfluid flow and “pure” normal flow are given and compared.
Abstract The simultaneous flow of the superfluid and normal components of liquid He II through a capillary is studied. The manner in which the two fluids are forced to flow with independently… (More)
Abstract Flowing liquid He II through a capillary is studied, for types of flow in which the velocities v n and v n , of the normal fluid and the superfluid respectively, can be varied independently.… (More)
Abstract Superfluid flow has been studied in two capillaries with diameters of 2.94 × 10 -2 cm and 0.95 × 10 -2 cm, at temperatures ranging from 1.2 K to 1.5 K. The chemical-potential difference and… (More)