Particles-Vortex Interactions and Flow Visualization in 4He

Article

DOI: 10.1007/s10909-009-9994-8

Cite this article as:
Sergeev, Y.A. & Barenghi, C.F. J Low Temp Phys (2009) 157: 429. doi:10.1007/s10909-009-9994-8

Abstract

Recent experiments have demonstrated a remarkable progress in implementing and use of the Particle Image Velocimetry (PIV) and particle tracking techniques for the study of turbulence in 4He. However, an interpretation of the experimental data in the superfluid phase requires understanding how the motion of tracer particles is affected by the two components, the viscous normal fluid and the inviscid superfluid. Of a particular importance is the problem of particle interactions with quantized vortex lines which may not only strongly affect the particle motion, but, under certain conditions, may even trap particles on quantized vortex cores. The article reviews recent theoretical, numerical, and experimental results in this rapidly developing area of research, putting critically together recent results, and solving apparent inconsistencies. Also discussed is a closely related technique of detection of quantized vortices by negative ion bubbles in 4He.

Keywords

Superfluids Vortices and turbulence Particle-vortex interactions Flow visualization 

PACS

67.40.Vs 47.37.+q 47.27.-i 

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.School of Mechanical and Systems EngineeringNewcastle UniversityNewcastle upon TyneEngland, UK
  2. 2.School of Mathematics and StatisticsNewcastle UniversityNewcastle upon TyneEngland, UK