TRANSP predictive modeling of EAST steady state plasmas*

The EAST tokamak is starting operation with major upgrades to the heating, current drive, and diagnostic systems [1]. We use the plasma transport code TRANSP to predict performance [2] with nearly steady state non-inductive current conditions at plasma current near 500~kA and toroidal field near 2.3~T. The heating power is assumed to start with $\simeq$4~MW of beam injection and continue with $\simeq$3 MW of ICRH. Current drive of $\simeq$2~MW of LHCD is assumed. The GLF23 [3] predictive model incorporated in TRANSP is used to predict temperatures, and TGLF [4] to predict temperatures, toroidal rotation, and electron density profiles. We explore scans in parameters such as I$_p$, B$_0$, and boundary assumptions to maintain non-inductive and high performance. \\[4pt] [1] G.Wan, {\it et al.,} 41$^{st}$ EPS Conf, Berlin (2014) O2.104;\\[4pt] [2] R.V.Budny, Nucl. Fusion {\bf 52} (2012) 013001;\\[0pt] [3] R.Waltz, {\it et al.,} Phys. Plasmas {\bf 4} (1997) 2482;\\[0pt] [4] G.M.Staebler, {\it et al.,} Phys. Plasmas {\bf 14} (2007) 055909