The First Results of Solar Wind Background Study by 3D SIP-AMR-CESE MHD Model (Invited)

Details The First Results of Solar Wind Background Study by 3D SIP-AMR-CESE MHD Model (Invited) The First Results of Solar Wind Background Study by 3D SIP-AMR-CESE MHD Model (Invited)

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh32a..08f&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SH32A-08

Physics

[2164] Interplanetary Physics / Solar Wind Plasma, [2753] Magnetospheric Physics / Numerical Modeling

Scientific paper

The objective of this paper is to present new extensions of our Solar-Interplanetary space-time conservation element and solution element (CESE) model (SIP-CESE MHD model) [Feng et al., ApJ, 655, 1110] to adaptive mesh refinement (AMR) implementation under six-component grid system [Feng et al., ApJ, In Press]. By transforming the governing MHD equations from the physical space (x, y, z) to the computational spacewhile retaining the form of conservation, the SIP-AMR-CESE MHD model is implemented in the curvilinear coordinates by utilizing the parallel AMR package PARAMESH. Meanwhile, here is also included the volumetric heating source terms derived from the topology of the magnetic field expansion factor fS and the minimum angular separation (at the photosphere) between an open field foot point and its nearest coronal hole boundary. In this talk, we present the first result of applying the SIP-AMR-CESE MHD model for modeling the solar wind background by comparison with multiple spacecraft observations such as Ulysses, SOHO, ACE, WIND and STEREO. Our numerical results show overall good agreements in the solar corona and in interplanetary space with these multiple spacecraft observations.

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