Towards nonaxisymmetry; initial results using the Flux Coordinate Independent method in BOUT++
Plasma Physics
2016-12-21 v1
Abstract
Fluid simulation of stellarator edge transport is difficult due to the complexities of mesh generation; the stochastic edge and strong nonaxisymmetry inhibit the use of field aligned coordinate systems. The recent implementation of the Flux Coordinate Independent method for calculating parallel derivatives in BOUT++ has allowed for more complex geometries. Here we present initial results of nonaxisymmetric diffusion modelling as a step towards stellarator turbulence modelling. We then present initial (non-turbulent) transport modelling using the FCI method and compare the results with analytical calculations. The prospects for future stellarator transport and turbulence modelling are discussed.
Keywords
Cite
@article{arxiv.1609.06603,
title = {Towards nonaxisymmetry; initial results using the Flux Coordinate Independent method in BOUT++},
author = {Brendan Shanahan and Peter Hill and Ben Dudson},
journal= {arXiv preprint arXiv:1609.06603},
year = {2016}
}