Acoustic modes in a superleak waveguide filled with a superfluid He/sup 3/--He/sup 4/ mixture

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:5636110

Karchava, T A; Kekutiya, S E; Sanikidze, D G

Wave propagation in a superleak waveguide completely filled with a superfluid He/sup 3/--He/sup 4/ mixture is investigated under conditions of partial damping of the normal component of the fluid. The propagation velocities and absorption coefficients are calculated for the first and second modes, and their dependence on the He/sup 3/ concentration is determined. Relations are derived between the pressure, temperature, and concentration amplitudes in the different waves.

• Research Organization: Institute of Physics, Academy of Sciences of the Georgian SSR
• OSTI ID: 5636110
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 5:7; ISSN SJLPD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOUNDARY CONDITIONS
CONTINUITY EQUATIONS
DIFFERENTIAL EQUATIONS
DISPERSION RELATIONS
DISPERSIONS
EQUATIONS
EVEN-EVEN NUCLEI
FLUIDS
FOURTH SOUND
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MIXTURES
NUCLEI
PRESSURE DEPENDENCE
QUANTUM FLUIDS
SECOND SOUND
SOUND WAVES
STABLE ISOTOPES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE
WAVE PROPAGATION
WAVEGUIDES