6533b837fe1ef96bd12a30d8
RESEARCH PRODUCT
A monofluid flow mathematical model of liquid helium II based on extended non-equilibrium thermodynamics
Maria Stella Mongiovìsubject
PhysicsWork (thermodynamics)Liquid heliumMechanical EngineeringNon-equilibrium thermodynamicschemistry.chemical_elementThermodynamicsDissipationCondensed Matter PhysicsExtended irreversible thermodynamicslaw.inventionchemistryHeat fluxMechanics of MaterialslawSuperfluid helium-4Heliumdescription
The present work is a generalization of a previous analysis which aims at a single-fluid description of the macroscopic behaviour of helium II. A single-fluid model of helium II, with a wider range of temperatures and pressures than the one previously described, is formulated here using the extended thermodynamics of a non-ideal fluid in the absence of dissipation. The model here formulated includes, according to experimental data, the propagation of the two sounds typical of superfluid helium, a relationship between the stress deviator and the square of heat flux and an explanation of the fountain effect.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-09-01 | Meccanica |