Browsing by Subject "vorticity"

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  • Detecting and tracking eddies in oceanic flow fields: A Lagrangian descriptor based on the modulus of vorticity 
    Vortmeyer-Kley, R.; Gräwe, Ulf; Feudel, U. (Göttingen : Copernicus GmbH, 2016)
    Since eddies play a major role in the dynamics of oceanic flows, it is of great interest to detect them and gain information about their tracks, their lifetimes and their shapes. We present a Lagrangian descriptor based ...
  • Symmetry of steady deep-water waves with vorticity 
    Constantin, Adrian; Escher, Joachim (Cambridge : Cambridge University Press, 2004)
    For a large class of vorticities we prove that a steady periodic deep-water wave must be symmetric if its profile is monotone between crests and troughs. © 2004 Cambridge University Press.
  • Symmetry of steady periodic surface water waves with vorticity 
    Constantin, Adrian; Escher, Joachim (Cambridge : Cambridge University Press, 2004)
    For large classes of vorticities we prove that a steady periodic gravity water wave with a monotonic profile between crests and troughs must be symmetric. The analysis uses sharp maximum principles for elliptic partial ...
  • Variational formulations of steady rotational equatorial waves 
    Chu, Jifeng; Escher, Joachim (Berlin [u.a.] : De Gruyter, 2020)
    When the vorticity is monotone with depth, we present a variational formulation for steady periodic water waves of the equatorial flow in the f-plane approximation, and show that the governing equations for this motion can ...