For authors
Submission status

Archive (English)
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
VOLUME 80 | ISSUE 3 | PAGE 174
Topological noise scalings in superfluid and classical turbulence
D. Kivotides
Low Temperature Laboratory, Helsinki University of Technology, FIN-02015 HUT, Finland

PACS: 47.27.Gs, 47.32.Cc, 67.40.Vs
We calculate the topological noise characterizing the direction of line vortices in superfluid and classical turbulence by finding the intersection of line vortices with square surfaces of edge length ls positioned normal to three orthogonal axes. In the case of homogeneous superfluid turbulence in thermal counterflow, we find that the noise scales like ls along the two directions normal to the counterflow and like ls3/2 along the direction parallel to it. In homogeneous isotropic superfluid turbulence at T\rightarrow 0 K, the noise scales like ls7/4. In homogeneous isotropic classical turbulence the scaling is ls2. We offer possible interpretations of the computed scalings, as well as, justification for their differences.

Download PS file (GZipped, 139.2K)  |  Download PDF file (213.2K)