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SUMMARY:Sagy Ephrati (Chalmers & GU)
DTSTART:20251027T121500Z
DTEND:20251027T130000Z
DTSTAMP:20260417T003359Z
UID:cam/83
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/cam/83/">Geo
 metric regularisation of two-dimensional turbulence</a>\nby Sagy Ephrati (
 Chalmers & GU) as part of CAM seminar\n\nLecture held in MV:L14.\n\nAbstra
 ct\nRegularisation of turbulent flows is essential for computationally eff
 icient forecasting. In this talk\, we highlight a geometric mechanism for 
 regularising two-dimensional turbulence that preserves key conserved quant
 ities. We begin with a high-level introduction to how energy is distribute
 d across scales in turbulent flows\, using energy spectra to quantify turb
 ulence intensity and to illustrate energy cascades that govern flow evolut
 ion. We then discuss the conserved quantities unique to two-dimensional tu
 rbulence and how they give rise to the inverse energy cascade. This sets t
 he stage for recent results on geometric regularisation\, which allows for
  control over the energy distribution to enable reduced-complexity computa
 tions while retaining fundamental invariants and the inverse energy cascad
 e.\n
LOCATION:https://researchseminars.org/talk/cam/83/
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