Flow Phenomena in Liquid Helium II

  title={Flow Phenomena in Liquid Helium II},
  author={J. F. Allen and A. D. Misener},
RECENT measurements on the flow of liquid helium II through capillaries have yielded very varied results. We reported earlier1 that the flow through long capillaries bore no relation to a normal laminar or turbulent condition of the liquid, and that the velocity depended only slightly on the pressure head. 
Experiments on the flow of liquid helium through glass capillaries ranging in diameter from 0.025 cm. to 0.0036 cm., and with lengths varying from 2 cm. to 26 cm. were carried out. Normal laminar f...
Surface Transport in Liquid Helium II
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Viscosity of Liquid Helium II
IN recent experiments on the flow of liquid helium II through very small openings, carried out by Allen and Misener1, and by Kapitza2, an upper limit to the viscosity was placed at 10−9 C.G.S. units,Expand
Flow of Liquid Helium II
A SURVEY of the various properties of liquid helium II has prompted us to investigate its viscosity more carefully. One of us1 had previously deduced an upper limit of 10−5 C.G.S. units for theExpand
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THE abnormally high heat conductivity of helium II below the λ-point, as first observed by Keesom, suggested to me the possibility of an explanation in terms of convection currents. This explanationExpand
Transfer of Helium II on Glass
KAMERLINGH ONNES1 observed in 1922 that the surfaces of two volumes of liquid helium II, that is, helium below the λ point, in two concentric vessels adjusted themselves automatically to the sameExpand