  The extended-MHD NIMROD code [C.R. Sovinec and J.R. King, J. Comput. Phys.
229, 5803 (2010)] models broadband-MHD activity from a reconstruction of a
quiescent H-mode shot on the DIII-D tokamak [J. L. Luxon, Nucl. Fusion 42, 614
(2002)]. Computations with the reconstructed toroidal and poloidal ion flows
exhibit low-n perturbations (n=1-5) that grow and saturate into a
turbulent-like MHD state. The workflow used to project the reconstructed state
onto the NIMROD basis functions re-solves the Grad-Shafranov equation and
extrapolates profiles to include scrape-off-layer currents. Evaluation of the
transport from the turbulent-like MHD state leads to a relaxation of the
density and temperature profiles.

Plasma Physics