Determining the toroidal rotation for future tokamaks like ITER is a challenging and important problem. By combining empirical scalings for the intrinsic rotation at the top of the pedestal with the expected neutral beam torque and modeling of momentum transport, the toroidal rotation profile for ITER is predicted with TGYRO using TGLF (SAT0 and SAT1). On axis rotation exceeds 20 krad s−1 and the shear is significant enough to reduce turbulent transport and significantly increase confinement and fusion power when comparing to cases that ignore the effect of rotation. The prediction of the rotation at the top of the pedestal is made with increased confidence due to experiments and modeling in DIII-D that have determined the importance of fast-ion and neutral particle transport effects on intrinsic rotation at this location. In particular, the effect of neutral particles on momentum transport in the pedestal region is found to be insignificant.
确定未来托卡马克装置（如ITER）的环向旋转是一个具有挑战性的重要问题。通过将台基顶部固有旋转的经验定标与预期的中性束力矩及动量输运建模相结合，利用TGYRO（采用TGLF的SAT0和SAT1模式）预测了ITER的环向旋转剖面。在考虑旋转效应的情况下，轴心旋转速度超过20千弧度每秒，且旋转剪切足以显著降低湍流输运，从而提高约束和聚变功率，相较于忽略旋转效应的情形。由于DIII-D中的实验和建模已确定了快离子和中性粒子对该位置固有旋转的影响，台基顶部旋转的预测可信度得以提高。特别是，发现中性粒子对台基区域动量输运的影响不显著。