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Comparison of the calculations of the stability properties of a specific stellarator equilibrium with different MHD stability codes. (English) Zbl 0860.76077
Summary: A particular configuration of the LHD stellarator with an unusually flat pressure profile has been chosen to be a test case for comparison of the MHD stability property predictions of different three-dimensional and averaged codes for the purpose of code comparison and validation. In particular, two relatively localized instabilities, the fastest growing modes with toroidal mode numbers $$n=2$$ and $$n=3$$, were studied using several different codes, with the good agreement that has been found providing justification for the use of any of them for equilibria of the type considered.

##### MSC:
 76M99 Basic methods in fluid mechanics 76X05 Ionized gas flow in electromagnetic fields; plasmic flow 76W05 Magnetohydrodynamics and electrohydrodynamics 76E25 Stability and instability of magnetohydrodynamic and electrohydrodynamic flows
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