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RESEARCH PRODUCT
Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid Helium
Michele SciaccaDavid JouMaria Stella Mongiovìsubject
quantum vorticePhysicsCondensed Matter::Quantum GasesTurbulencePlane (geometry)Condensed Matter::OtherFOS: Physical sciencesLaminar flowVorticityCondensed Matter PhysicsHagen–Poiseuille equationNonlinear Sciences::Cellular Automata and Lattice Gasessuperfluid turbulenceElectronic Optical and Magnetic MaterialsVortexCondensed Matter - Other Condensed MatterPhysics::Fluid Dynamicscoflow and counterflowClassical mechanicsSettore MAT/07 - Fisica MatematicaCouette flowSuperfluid helium-4Other Condensed Matter (cond-mat.other)description
An equation previously proposed to describe the evolution of vortex line density in rotating counterflow turbulent tangles in superfluid helium is generalized to incorporate nonvanishing barycentric velocity and velocity gradients. Our generalization is compared with an analogous approach proposed by Lipniacki, and with experimental results by Swanson et al. in rotating counterflow, and it is used to evaluate the vortex density in plane Couette and Poiseuille flows of superfluid helium.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-03-17 |