Statistical validation of anomalous transport Multi-Mode model for high beta and ITB tokamak scenarios in KSTAR
T. Rafiq, E. Schuster, A. Pankin, J. Anderson, J. Weiland
Division of Plasma Physics (DPP) Annual Meeting of the American Physical Society (APS)
Fort Lauderdale, FL, USA, October 21-25, 2019
Abstract
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The Multi-Mode anomalous transport model [1] is validated employing
experimental data for superconducting KSTAR NBI heated tokamak discharges
that represent a high beta poloidal, high beta normalized, and ITB
long pulse scenarios. The Multi-Mode model computes the anomalous
transport driven by the ITG, TEM, ETG, KBM, RBM, and PB modes. In addition,
recent modification to the model allows the computation of the anomalous
transport driven by the microtearing modes [2]. The validation study is
carried out using integrated modeling simulations that employ the numerical
PT-SOLVER in the TRANSP code and that utilizes the KSTAR experimental
boundary and initial conditions. The equilibrium data is interpolated
from EFIT reconstruction. NBI heating and current drive are obtained using
NUBEAM. Neoclassical transport is calculated using the Chang-Hinton model.
The predicted evolving temperature profiles are compared with the
corresponding KSTAR experimental data. The comparison is quantified by
calculating the RMS deviations and Offsets.
[1] T. Rafiq et al., Phys. Plasmas, 20, 032506, 2013.
[2] T. Rafiq et al., Phys. Plasmas, 23, 062507, 2016.