Nonlinear gyrokinetic simulations of boron density peaking: experimental comparisons and reduced transport model validation References
Résumé
Accurately predicting turbulent light impurity transport in tokamaks has been a challenge for gyrokinetic codes, e.g. and remains as such, in some regimes where the impurity profiles are hollow .
Furthermore, impurity transport modelling using reduced transport models is becoming an important ingredient in integrated modelling frameworks due to additional nonlinearities involved via light and heavy
impurity profiles evolution and is well illustrated e.g. in current ramp-up modelling. In this context, a set of nonlinear gyrokinetic simulations with GKW have been performed to investigate existing discrepancies with experimental data and possible discrepancies with the quasilinear reduced model QuaLiKiz
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