EGU22-8406, updated on 10 Jan 2024
https://doi.org/10.5194/egusphere-egu22-8406
EGU General Assembly 2022
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Analytical Modelling of Curved Cylindrical Flux Ropes

Andreas Weiss1,2, Teresa Nieves-Chinchilla3, Christian Möstl1, Martin Reiss1, Jürgen Hinterreiter2, Tanja Amerstorfer1, and Rachel Bailey4
Andreas Weiss et al.
  • 1Space Research Institute, Austrian Academy of Sciences, Schmiedlstraße 6, 8042 Graz, Austria
  • 2Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz, Austria
  • 3Heliospheric Physics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
  • 4Zentralanstalt für Meteorologie und Geodynamik, Hohe Warte 38, 1190 Vienna, Austria

We present our most recent results for an analytical flux rope model that includes the effects of curvature and torsion on the magnetic field. Our analytical model consists of a cylindrical flux rope that can be bent or twisted in any manner under the condition of axial and poloidal flux conservation. We can furthermore configure our model to exhibit any arbitrary radial twist distribution but we do not necessarily assume the structure to be force-free. The approach can serve as a first stepping point to better model the deformations of ICME flux ropes that are expected to occur due to longitudinal velocity differentials in the solar wind. It is briefly discussed how this model can be implemented in real-world simulations and how it can be extended to non-cylindrical shapes.

How to cite: Weiss, A., Nieves-Chinchilla, T., Möstl, C., Reiss, M., Hinterreiter, J., Amerstorfer, T., and Bailey, R.: Analytical Modelling of Curved Cylindrical Flux Ropes, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8406, https://doi.org/10.5194/egusphere-egu22-8406, 2022.