Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid helium

Journal Article · Tue Jul 01 04:00:00 EDT 2008 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.78.024524· OSTI ID:21143590

Jou, D ^[1]; Sciacca, M; Mongiovi, M S ^[2]

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1. Departament de Fisica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Catalonia (Spain)
2. Dipartimento di Metodi e Modelli Matematici Universita di Palermo, c/o Facolta di Ingegneria, Viale delle Scienze, 90128 Palermo (Italy)

An equation previously proposed to describe the evolution of vortex-line density in rotating counterflow turbulent tangles in superfluid helium [Phys. Rev B 69, 094513 (2004)] is generalized to incorporate nonvanishing barycentric velocity and velocity gradients. Our generalization is compared with an analogous approach proposed by Lipniacki [Eur. J. Mech. B Fluids 25, 435 (2006)], and with experimental results by Swanson et al. [Phys. Rev. Lett. 50, 190 (1983)] in rotating counterflow, and it is used to evaluate the vortex density in plane Couette and Poiseuille flows of superfluid helium.

• OSTI ID: 21143590
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 2 Vol. 78; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COUETTE FLOW
DENSITY
EQUATIONS
EVOLUTION
HELIUM
LAMINAR FLOW
SUPERFLUIDITY
TURBULENCE
VELOCITY
VORTICES