Verification of BOUT++ by the method of manufactured solutions
Artikel i vetenskaplig tidskrift, 2016

BOUT++ is a software package designed for solving plasma fluid models. It has been used to simulate a wide range of plasma phenomena ranging from linear stability analysis to 3D plasma turbulence and is capable of simulating a wide range of drift-reduced plasma fluid and gyro-fluid models. A verification exercise has been performed as part of a EUROfusion Enabling Research project, to rigorously test the correctness of the algorithms implemented in BOUT++, by testing order-of-accuracy convergence rates using the Method of Manufactured Solutions (MMS). We present tests of individual components including time-integration and advection schemes, non-orthogonal toroidal field-aligned coordinate systems and the shifted metric procedure which is used to handle highly sheared grids. The flux coordinate independent approach to differencing along magnetic field-lines has been implemented in BOUT++ and is here verified using the MMS in a sheared slab configuration. Finally, we show tests of three complete models: 2-field Hasegawa-Wakatani in 2D slab, 3-field reduced magnetohydrodynamics (MHD) in 3D field-aligned toroidal coordinates, and 5-field reduced MHD in slab geometry.

Författare

Benjamin Dudson

University of York

Jens Madsen

Danmarks Tekniske Universitet (DTU)

John Omotani

Chalmers, Fysik, Subatomär fysik och plasmafysik

Peter Hill

University of York

Luke Easy

University of York

Culham Lab

Michael Løiten

Danmarks Tekniske Universitet (DTU)

Physics of Plasmas

1070-664X (ISSN) 1089-7674 (eISSN)

Vol. 23 6 062303- 062303

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1063/1.4953429

Mer information

Senast uppdaterat

2018-03-06