Evidence of non-local heat transport in JET plasmas
Paper in proceedings, 2018
The heat transport in a selected database of the JET ILW plasmas is analysed where a significant departure from the diffusive model is found. The findings show that the nature of the heat transport in these plasmas is non-local (super-diffusive), and a novel approach is proposed for defining the level of the non-locality (superdiffusivity) of the heat flux, and the corresponding transport coefficient. The new model is expected to improve the accuracy of simplified models used in transport studies of fusion plasmas.
Fractional transport model