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Lookup NU author(s): Professor Axel Brandenburg, Dr Wolfgang Dobler
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The usefulness of high-order schemes in astrophysical MHD turbulence simulations is discussed. Simple advection tests of hat profiles are used to compare schemes of different order. Higher order schemes generally need less explicit diffusion. In the case of a standing Burgers shock it is shown that the overall accuracy improves as the order of the scheme is increased. A memory efficient 3-step 2N-RK scheme is used. For cache efficiency, the entire set of equations is solved along pencils in the yz-plane. The advantage of solving for the magnetic vector potential is highlighted. Finally, results from a simulation of helical turbulence exhibiting large scale dynamo action are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
Author(s): Brandenburg A, Dobler W
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Computer Physics Communications: Europhysics Conference on Computational Physics (CCP
Year of Conference: 2002
Pages: 471-475
ISSN: 0010-4655
Publisher: Elsevier BV
URL: http://dx.doi.org/10.1016/S0010-4655(02)00334-X
DOI: 10.1016/S0010-4655(02)00334-X
Library holdings: Search Newcastle University Library for this item
ISBN: 18792944
