scholarly journals The viscosity and the thermal conductivity of normal liquid Helium 3 in the LOCV frame-work

2017 ◽  
Vol 466 ◽  
pp. 396-404 ◽  
Author(s):  
M. Modarres ◽  
M. Rahmat
Keyword(s):  
Thermal Conductivity ◽  
Liquid Helium ◽  
Normal Liquid ◽  
Frame Work ◽  
Helium 3

Equation of State for Normal Liquid Helium-3 from 0.1 to 3.3157 K

2006 ◽  
Vol 143 (1-2) ◽  
pp. 1-29 ◽  
Author(s):  
Yonghua Huang ◽  
Guobang Chen ◽  
Shiqing Wang ◽  
Vincent Arp
Keyword(s):  
Equation Of State ◽  
Liquid Helium ◽  
Normal Liquid ◽  
Helium 3

Pressure dependence of elementary excitations in normal liquid helium-3

1987 ◽  
Vol 59 (2) ◽  
pp. 217-220 ◽  
Author(s):  
R. Scherm ◽  
K. Guckelsberger ◽  
B. Fak ◽  
K. Sköld ◽  
A. J. Dianoux ◽  
...  
Keyword(s):  
Liquid Helium ◽  
Pressure Dependence ◽  
Elementary Excitations ◽  
Normal Liquid ◽  
Helium 3

Experiments on the flow of heat in liquid helium below 0.7 °K

1958 ◽  
Vol 246 (1246) ◽  
pp. 390-405 ◽  
Keyword(s):  
Thermal Conductivity ◽  
Liquid Helium ◽  
Free Path ◽  
Empirical Relation ◽  
Mean Free Path ◽  
Series Of Experiments ◽  
The Mean ◽  
Set Up ◽  
Low Pressures ◽  
Measured Thermal Conductivity

A series of experiments has been performed to study the steady flow of heat in liquid helium in tubes of diameter 0.05 to 1.0 cm at temperatures between 0.25 and 0.7 °K. The results are interpreted in terms of the flow of a gas of phonons, in which the mean free path λ varies with temperature, and may be either greater or less than the diameter of the tube d . When λ ≫ d the flow is limited by the scattering of the phonons at the walls, and the effect of the surface has been studied, but when λ ≪ d viscous flow is set up in which the measured thermal conductivity is increased above that for wall scattering. This behaviour is very similar to that observed in the flow of gases at low pressures, and by applying kinetic theory to the problem it can be shown that the mean free path of the phonons characterizing viscosity can be expressed by the empirical relation λ = 3.8 x 10 -3 T -4.3 cm. This result is inconsistent with the temperature dependence of λ as T -9 predicted theoretically by Landau & Khalatnikov (1949).

Liquid Helium-3: A New Superfluid Suggested

Science ◽  
1973 ◽  
Vol 180 (4087) ◽  
pp. 725-726
Author(s):  
W. D. Metz
Keyword(s):  
Liquid Helium ◽  
Helium 3

Ultrastructural features of the sensori-motor cortex of the primate

1979 ◽  
Vol 285 (1006) ◽  
pp. 123-139 ◽  
Keyword(s):  
Thermal Conductivity ◽  
Motor Cortex ◽  
Thin Layer ◽  
Liquid Helium ◽  
Thermal Insulation ◽  
Solid Surfaces ◽  
The Other ◽  
Experimental Chamber ◽  
Short Discussion ◽  
Inside Wall

cooled to 2°K or lower. Rollin (1936) found that the thermal insulation of vessels containing liquid helium was much worse below than above the A point. He explained his observation by assuming the existence of a thin layer of liquid helium on the inside wall of the connecting tube, and thought it probable that the change in thermal conductivity of this film at the A point gave rise to the anomalous effects observed. As the result of more recent (unpublished) experiments Rollin and Simon* have put forward the other explanation that the film creeps up the tube and evaporates eventually. It is obvious that all these phenomena may have a common explanation and it was the object of the experiments described in this paper and the following paper to investigate the behaviour of He 11 in contact with solid surfaces systematically. The phenomena had to be investigated from various aspects and this made experiments necessary which varied in purpose and character to some extent. For simplicity’s sake we will therefore give, together with the description of each experiment, a short discussion and summarize at the end of the second paper all results in a general discussion on the whole phenomenon. All experiments were carried out in the same cryostat; and for different experiments only the experimental chamber and the experimental arrangement in it were altered.

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