Low-pressure vortex analysis in turbulence: life, structure, and dynamical role of vortices

  • Shigeo Kida
  • Susumu Goto
  • Takafumi Makihara
Conference paper
Part of the Fluid Mechanics and Its Applications book series (FMIA, volume 71)


The low-pressure vortex analysis is performed for the study of dynamical properties of tubular vortices in turbulence. An automatic tracking scheme of arbitrarily chosen vortices is developed which makes it easier to examine the history of individual vortices. The low-pressure vortices have typically two distinct regions of high vorticity, that is, the tubular central core and surrounding spiral arms. The vorticity in these two regions is perpendicular to each other. It is observed that both the length of fluid lines and the area of fluid surfaces increase, in average, exponentially in time with growth rates of 0.17 and 0.30 (Kolmogorov time) −1, respectively. The main contribution to these stretching comes from the velocity induced by vortices.


Vortex Core Isotropic Turbulence Vortex Tube Azimuthal Velocity Large Reynolds Number 
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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Shigeo Kida
    • 1
  • Susumu Goto
    • 1
  • Takafumi Makihara
    • 1
  1. 1.Theory and Computer Simulation CenterNational Institute for Fusion ScienceTokiJapan

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