# flhtools
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FLHTOOLS - Field-Line Helicity TOOLS

A.R. Yeates, Durham University -- 20/7/18

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Python code (2.7 or 3.x) for computing vector potentials, field-line helicity, and helicity on a regular Cartesian grid. Also requires Fortran 90 (used for tracing field lines).

To start, you should read the manual (doc/man.pdf), which includes a quick-start guide to running the code.

The code accompanies a paper: A.R. Yeates and M.H. Page, Relative field-line helicity in bounded domains, _J. Plasma Phys._ **84**, 775840602, 2018.
(preprint here: https://arxiv.org/abs/1811.02306).