Heat conduction by liquid helium ii in capillary tubes II. Measurements of the pressure gradient
- 1 September 1961
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 6 (69), 1173-1181
- https://doi.org/10.1080/14786436108239678
Abstract
The pressure and temperature gradients accompanying heat flow in liquid helium II have been measured simultaneously. The experiments were made in a glass tube of 107·6 μ diameter and 10·2 cm length between 1·3°k and 1·8°k. Significant deviations from Allen and Reekie's rule were observed end are provisionally attributed to an eddy viscosity, ηe, due to turbulence in the superfluid component. An equation, baaed on dimensional arguments, is proposed for ηe which satisfactorily represents the experimental date available at present.Keywords
This publication has 10 references indexed in Scilit:
- Thermomechanical pressure measurements in liquid helium-IICryogenics, 1961
- Isothermal flow of liquid helium-II in wide capillariesCryogenics, 1961
- Heat conduction and fountain pressure in liquid He IIAnnals of Physics, 1960
- `Eddy' Viscosity in Liquid Helium IIProceedings of the Physical Society, 1960
- The heat conductivity and viscosity of liquid helium IIProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1959
- The rotation of liquid helium II II. The theory of mutual friction in uniformly rotating helium IIProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1956
- CXIV. The onset of friction in helium IIPhilosophical Magazine, 1956
- On the irreversible processes in liquid helium IIPhysica, 1949
- New measurements on the fountain effect and the heat conductivity of liquid helium IIPhysica, 1947
- Momentum transfer and heat flow in liquid helium IIMathematical Proceedings of the Cambridge Philosophical Society, 1939