EGU21-4713
https://doi.org/10.5194/egusphere-egu21-4713
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Vortices evolution in ideal (M)HD

José Roberto Canivete Cuissa1,2 and Oskar Steiner1,3
José Roberto Canivete Cuissa and Oskar Steiner
  • 1Istituto Ricerche Solari Locarno (IRSOL), Via Patocchi 57 – Prato Pernice, 6605 Locarno-Monti, Switzerland (jose.canivete@irsol.usi.ch)
  • 2Center for Theoretical Astrophysics and Cosmology, Institute for Computational Science (ICS),University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
  • 3Leibniz-Institut für Sonnenphysik (KIS), Schöneckstrasse 6, 79104 Freiburg i.Br., Germany

Vortices and vortex tubes are ubiquitous in the solar atmosphere and space plasma. In order to identify vortices and to study their evolution, we seek a suitable mathematical criterium for which a dynamical equation exists. So far, the only option available is given by the vorticity, which however is not the optimal criterion since it can be biased by shear flows. Therefore, we look at another criterion, the swirling strength, for which we found an evolution equation, which we suggest as a novel tool for the analysis of vortex dynamics in (magneto-)hydrodynamics. We highlight a few results obtained by applying the swirling strength and its dynamical equation to simulations of the solar atmosphere.

How to cite: Canivete Cuissa, J. R. and Steiner, O.: Vortices evolution in ideal (M)HD, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-4713, https://doi.org/10.5194/egusphere-egu21-4713, 2021.

Displays

Display file

Comments on the display

to access the discussion