BOUT++: A framework for parallel plasma fluid simulations
By B. Dudson, M. Umansky, X. Xu, P. Snyder, UK H.R.WilsonUniversityofYork, Lawrence Livermore National Laboratory Livermore California Usa, General Atomics Usa. Computer Physics Communications, 2008
439 citations recorded by the source corpus.
Abstract A new modular code called BOUT++ is presented, which simulates 3D fluid equations in curvilinear coordinates. Although aimed at simulating Edge Localised Modes (ELMs) in tokamak x -point geometry, the code is able to simulate a wide range of fluid models (magnetised and unmagnetised) involving an arbitrary number of scalar and vector fields, in a wide range of geometries. Time evolution is fully implicit, and 3rd-order WENO schemes are implemented. Benchmarks are presented for linear and non-linear problems (the Orszag–Tang vortex) showing good agreement. Performance of the code is tested by scaling with problem size and processor number, showing efficient scaling to thousands of processors. Linear initial-value simulations of ELMs using reduced ideal MHD are presented, and the results compared to the ELITE linear MHD eigenvalue code. The resulting mode-structures and growth-rate are found to be in good agreement ( γ BOUT++ = 0.245 ω A , γ ELITE = 0.239 ω A , with Alfvenic timescale 1 / ω A = R / V A ). To our knowledge, this is the first time dissipationless, initial-value simulations of ELMs have been successfully demonstrated.
Subfields: Astronomy and Astrophysics, Biomedical Engineering, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/61ebf7a11fe72e0e4ce3afb0f372e5ffb5b18efa
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In Biomedical Engineering
Citations in the corpus
- The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas (2020, methodology): “Comparisons have been made between JOREK and BOUT++ with the aim to validate the nonlinear MHD codes.”