TRANSP modeling of NSTX discharge 141716


Two sets of simulations are proposed for the NSTX discharge 141716. The first set corresponds to the plasma parameters at t=0.364 sec. The second set corresponds to the plasma parameters at t=0.482 sec. The values of ExB flow shear was significantly increased between these two time slices in the regions from rho=0.35 to rho=0.70 and around rho=0.80.

The objective is to test the applicability of the MMM 8.1 anomalous transport model under different values of the ExB flow shear. It is expected that the growth rates and effective diffusivities are much smaller at the later time, when the ExB flow shear rates are significantly larger. The NSTX experiment suggests that this statement is true for short scale instabilities as well.

ExB flow shear rates