Experimental Evidence for a Liquid-Gas Phase Transition in Nuclear Systems

1984 ◽  
Vol 52 (7) ◽  
pp. 496-499 ◽  
Author(s):  
A. D. Panagiotou ◽  
M. W. Curtin ◽  
H. Toki ◽  
D. K. Scott ◽  
P. J. Siemens
Keyword(s):  
Phase Transition ◽  
Experimental Evidence ◽  
Gas Phase ◽  
Nuclear Systems

scholarly journals Liquid–gas phase transition and Coulomb instability of asymmetric nuclear systems

2005 ◽  
Vol 748 (1-2) ◽  
pp. 226-240 ◽  
Author(s):  
P. Wang ◽  
D.B. Leinweber ◽  
A.W. Thomas ◽  
A.G. Williams
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Nuclear Systems

Finite nuclear fragmenting systems: An experimental evidence of a first order liquid gas phase transition

2001 ◽  
Author(s):  
M. D'AGOSTINO ◽  
F. GULMINELLI ◽  
PH. CHOMAZ ◽  
M. BRUNO ◽  
F. CANNATA ◽  
...  
Keyword(s):  
Phase Transition ◽  
Experimental Evidence ◽  
Gas Phase ◽  
First Order

scholarly journals Negative heat capacity in the critical region of nuclear fragmentation: an experimental evidence of the liquid-gas phase transition

2000 ◽  
Vol 473 (3-4) ◽  
pp. 219-225 ◽  
Author(s):  
M. D'Agostino ◽  
F. Gulminelli ◽  
Ph. Chomaz ◽  
M. Bruno ◽  
F. Cannata ◽  
...  
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Experimental Evidence ◽  
Gas Phase ◽  
Critical Region ◽  
Nuclear Fragmentation

Liquid-gas phase transition in infinite and finite nuclear systems

2004 ◽  
Vol 69 (1) ◽  
Author(s):  
Tapas Sil ◽  
S. K. Samaddar ◽  
J. N. De ◽  
S. Shlomo
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Nuclear Systems

Numerical Analysis of Two-Phase Pipe Flow of Liquid Helium Using Multi-Fluid Model

2001 ◽  
Vol 123 (4) ◽  
pp. 811-818 ◽  
Author(s):  
Jun Ishimoto ◽  
Mamoru Oike ◽  
Kenjiro Kamijo
Keyword(s):  
Phase Transition ◽  
Gas Phase ◽  
Liquid Helium ◽  
Two Phase Flow ◽  
Fluid Model ◽  
Numerical Results ◽  
Phase Flow ◽  
Two Dimensional ◽  
Two Phase ◽  
Normal Fluid

The two-dimensional characteristics of the vapor-liquid two-phase flow of liquid helium in a pipe are numerically investigated to realize the further development and high performance of new cryogenic engineering applications. First, the governing equations of the two-phase flow of liquid helium based on the unsteady thermal nonequilibrium multi-fluid model are presented and several flow characteristics are numerically calculated, taking into account the effect of superfluidity. Based on the numerical results, the two-dimensional structure of the two-phase flow of liquid helium is shown in detail, and it is also found that the phase transition of the normal fluid to the superfluid and the generation of superfluid counterflow against normal fluid flow are conspicuous in the large gas phase volume fraction region where the liquid to gas phase change actively occurs. Furthermore, it is clarified that the mechanism of the He I to He II phase transition caused by the temperature decrease is due to the deprivation of latent heat for vaporization from the liquid phase. According to these theoretical results, the fundamental characteristics of the cryogenic two-phase flow are predicted. The numerical results obtained should contribute to the realization of advanced cryogenic industrial applications.

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