Three-Dimensional Coupled Dynamics of the Two-Fluid Model in Superfluid He 4: Deformed Velocity Profile of Normal Fluid in Thermal Counterflow

Satoshi Yui, Makoto Tsubota, Hiromichi Kobayashi

研究成果: Article査読

15 被引用数 (Scopus)

抄録

The coupled dynamics of the two-fluid model of superfluid He4 is numerically studied for quantum turbulence of the thermal counterflow in a square channel. We combine the vortex filament model of the superfluid and the Navier-Stokes equations of normal fluid. Simulations of the coupled dynamics show that the velocity profile of the normal fluid is deformed significantly by superfluid turbulence as the vortices become dense. This result is consistent with recently performed visualization experiments. We introduce a dimensionless parameter that characterizes the deformation of the velocity profile.

本文言語English
論文番号155301
ジャーナルPhysical review letters
120
15
DOI
出版ステータスPublished - 2018 4 9

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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