#Physics dynamics calculator code#

Key words: Sun: magnetic fields / methods: numerical / magnetohydrodynamics (MHD)

#Physics dynamics calculator code#

The code and supporting description are provided in the appendices. The program can be parallelised to run quickly over multiple computing cores. The program is a FORTRAN 90 code that can be used to generate potential magnetic field inputs for Lare3d and other MHD solvers that use a staggered grid for magnetic field components. It is also shown that extending the region over which normal photospheric field is specified can improve the accuracy of the potential field produced. A new finite differencing formula was derived which accounts for grid staggering it is shown that this formula gives a numerical approximation that is closest to the real potential field. The code first calculates a magnetic potential using the GreenвЂ™s function method and then uses a finite differencing scheme to calculate the magnetic field from the potential. Jones Building, 327 Mile End Road, London E1 4NS, UKД®-mail: program has been designed to generate accurately a potential magnetic field on a staggered grid by extrapolating the magnetic field normal to the photospheric surface. School of Physics and Astronomy, Queen Mary University of London, G.O.

Astronomical objects: linking to databases.Including author names using non-Roman alphabets.Suggested resources for more tips on language editing in the sciences Punctuation and style concerns regarding equations, figures, tables, and footnotes