A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
Quantifying Profile Stiffness
Plasma and Fusion Research
Profile stiffness is quantified using a simple technique. The approach is tested on a paradigmatic numerical stiff transport model for one field (particles). The stiffness is found to exhibit radial structure and to depend on collisionality, which might help explaining the observed lack of stiffness in stellarators, as compared to tokamaks. The extension of this approach to heat transport requires some care. A proposal for a stiffness quantifier for heat transport is presented, and tested on data from the TJ-II stellarator.doi:10.1585/pfr.3.s1070 fatcat:p3v7b76gmvbrtnqlg5l2l4wjpy