Convective instability of a superfluid /sup 3/He--/sup 4/He mixture in a superleak

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00685779· OSTI ID:5652320

Steinberg, V

The convective instability of a superfluid /sup 3/He--/sup 4/He mixture in a porous medium confined between parallel horizontal planes is studied. It is shown that this system behaves as a pure classical liquid in a porous medium from the point of view of the convective instability in the whole range of the phase diagram between the lambda line and the coexistence curve. It is predicted that two-fluid effects become important for the convection onset and can be observed experimentally in this system at moderately low temperatures. This system is supposed to be the most convenient one to study experimentally convection in a porous medium.

• Research Organization: Department of Physics, University of California, Snata Barbara, California
• OSTI ID: 5652320
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 53:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONVECTIVE INSTABILITIES
DIAGRAMS
DISPERSIONS
ENTROPY
EQUATIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUCTUATIONS
FLUID MECHANICS
FLUIDS
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
HYDRODYNAMICS
INSTABILITY
ISOTOPES
LIGHT NUCLEI
MATERIALS
MECHANICS
MIXTURES
NONLINEAR PROBLEMS
NUCLEI
PHASE DIAGRAMS
PHYSICAL PROPERTIES
PLASMA INSTABILITY
POROUS MATERIALS
PRANDTL NUMBER
QUANTUM FLUIDS
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE
VARIATIONS