Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-26T03:07:57.891Z Has data issue: false hasContentIssue false
  • English
  • Français

AMR-MHD Simulation of CME Propagation in Solar Wind Generated on Split Dodecahedron Grid

Published online by Cambridge University Press:  24 July 2018

Tomoya Ogawa ,
Mitsue Den ,
Takashi Tanaka  and
Kazuyuki Yamashita
Tomoya Ogawa
Affiliation:
Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan email: [email protected]
Mitsue Den
Affiliation:
National Institute of Information and Communications Technology, Koganei, Tokyo, Japan
Takashi Tanaka
Affiliation:
National Institute of Information and Communications Technology, Koganei, Tokyo, Japan Kyushu University, Fukuoka, Japan
Kazuyuki Yamashita
Affiliation:
University of Yamanashi, Kofu, Yamanashi, Japan
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We perform simulations of the interplanetary coronal mass ejections relating to the magnetic storm on 17 March 2015. A hierarchical mesh structure is used, which is controlled by an adaptive mesh refinement technique, with fine-scale cells where it matters, the structure of the running shock waves of the coronal mass ejections and co-rotating interactive regions. The initial and the inner-boundary conditions are derived from another simulation, which uses a split dodecahedron grid. The resulting shock-wave with the models adjusted to the observed ejection speed on the sky plane show delays by 20% in the arrival time at the Earth from the observed data. By contrast, the model adjusted to the observed arrival time at the Earth needs the ejection speed 30% higher than that in the above models.

Keywords

MHDmethods: numericalSun: coronal mass ejections (CMEs)solar wind
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S335: Space Weather of the Heliosphere: Processes and Forecasts , July 2017 , pp. 314 - 317
Copyright
Copyright © International Astronomical Union 2018 

References

Den, M., Tanaka, T., Kubo, Y. & Watari, S. 2015, 34th Int. Cosmic Ray Conf., 184Google Scholar
Khokhlov, A. M., 1998, J.Comput.Phys., 143, 519Google Scholar
Nakamizo, A., Tanaka, T., Kubo, Y., Kamei, S. & Shimazu, H., 2009, J. Geophys. Res., 114, A07109Google Scholar
Odstrcil, D. & Pizzo, V. J., 1999, J. Geophys. Res., 104, 483Google Scholar