HiFi -- Adaptive, Implicit, High Order Finite Element Code for General Multi-Fluid Applications.

Physics – Plasma Physics

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Scientific paper

A three-dimensional (3D) implicit high order finite (spectral) element code HiFi, based on the well established two-dimensional SEL code[1], has been developed at the PSI-Center of the University of Washington. The distinguishing capabilities of the code include fully 3D adaptive spectral element spatial representation with flexible multi-block geometry, highly parallelizable implicit time advance, and general flux-source form of the PDEs and boundary conditions that can be implemented in its framework. The two-dimensional version of the code has been extensively verified and used for simulations of various multi-fluid plasma physics phenomena. In particular, magnetic reconnection in visco-resistive MHD, electron MHD, Hall MHD, and electron-positron plasmas has been investigated. The 3D code verification studies are ongoing and plans to use HiFi for simulations of solar flare dynamics will be presented. This research has been supported, in part, by the U.S. DOE Fusion Energy Postdoctoral Fellowship.
[1] V.S. Lukin, Ph.D. Dissertation, Princeton University (2007).

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