Superflow passing over a rough surface: Vortex nucleation

Simple item page
dc.contributor.authorFrisch, Thomas
dc.contributor.authorNazarenko, Sergey
dc.contributor.authorRica, Sergio
dc.date.accessioned2025-01-20T17:07:29Z
dc.date.available2025-01-20T17:07:29Z
dc.date.issued2024
dc.description.abstractThe transition from a free vortex superflow to a dissipative vortex flow in a superfluid remains an open problem, in particular because in real experiments, microscopic asperities on the walls play a major role since the relevant scales in a superfluid motion are basically of atomic scale. Here we model a superflow using the Gross-Pitaevskii mean-field equation in a domain with a rigid sinusoidal boundary. We demonstrate, analytically and numerically, the existence of a well-defined critical velocity for vortex nucleation. Additionally, we discuss the intrinsic mechanism of vortex nucleation by the appearance of a solitary wave characterized by a depletion of the wave function near the boundary.
dc.fuente.origenWOS
dc.identifier.doi10.1103/PhysRevFluids.9.024701
dc.identifier.issn2469-990X
dc.identifier.urihttps://doi.org/10.1103/PhysRevFluids.9.024701
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90861
dc.identifier.wosidWOS:001187573100002
dc.issue.numero2
dc.language.isoen
dc.revistaPhysical review fluids
dc.rightsacceso restringido
dc.titleSuperflow passing over a rough surface: Vortex nucleation
dc.typeartículo
dc.volumen9
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas