Vortex dynamics and scaling in turbulent counterflowing helium II
Journal Article
·
· J. Low Temp. Phys.; (United States)
Dimensional analysis of the equation of motion for a vortex line yields a dimensionless velocity which controls the development of a vortex line tangle in counterflowing helium II. This scaling is applied to measurements of critical velocities and ratios of line density to counterflow velocity from experiments in channels of different sizes; substantially better agreement is found than previously reported. An asymptotic relationship is derived between line density and counterflow velocity which fits new and existing data remarkably well. This relationship is used to explain the increase in the power law of the Gorter--Mellink relationship between temperature gradient and heat flux near the lambda point.
- Research Organization:
- Institute of Theoretical Science and Department of Physics, University of Oregon, Eugene, Oregon
- OSTI ID:
- 6161907
- Journal Information:
- J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 61:5; ISSN JLTPA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study of vortex dynamics in counterflowing helium II
Superfluid turbulence in counterflowing helium II
Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid helium
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:6056543
Superfluid turbulence in counterflowing helium II
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:7049169
Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid helium
Journal Article
·
Tue Jul 01 00:00:00 EDT 2008
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:21143590