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arXiv · 1506.03247

On the validity of drift-reduced fluid models for tokamak plasma simulation

Jarrod Leddy·Ben Dudson·Michele Romanelli
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Abstract

Drift-reduced plasma fluid models are commonly used in plasma physics for analytics and simulations; however, the validity of such models must be verified for the regions of parameter space in which tokamak plasmas exist. By looking at the linear behaviour of drift-reduced and full-velocity models one can determine that the physics lost through the simplification that the drift-reduction provides is important in the core region of the tokamak. It is more acceptable for the edge-region but one must determine specifically for a given simulation if such a model is appropriate.

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Jarrod Leddy, Ben Dudson, Michele Romanelli. 2015-06-11. On the validity of drift-reduced fluid models for tokamak plasma simulation. https://doi.org/10.1088/0741-3335%2F57%2F12%2F125016

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