4 papers
Triggers for plasma detachment bifurcation in the edge divertor region of tokamaks
Menglong Zhao, Thomas Rognlien, Ben Zhu +3
We report the discovery of the trigger for detachment bifurcation phenomenon in tokamak divertors, revealed through steady-state and time-dependent UEDGE simulations: The observed…
Divertor Detachment Characterization in Negative Triangularity Discharges in DIII-D via 2D Edge-Plasma Transport Modeling
Menglong Zhao, Filippo Scotti, Thomas Rognlien +6
Edge fluid modeling of the first divertor-plasma detachment experiments in negative triangularity discharges on DIII-D is presented using the 2D multi-fluid code UEDGE, including c…
Physics insights from a large-scale 2D UEDGE simulation database for detachment control in KSTAR
Menglong Zhao, Xueqiao Xu, Ben Zhu +8
A large-scale database of two-dimensional UEDGE simulations has been developed to study detachment physics in KSTAR and to support surrogate models for control applications. Nearly…
Statistical inference of anomalous thermal transport with uncertainty quantification for interpretive 2-D SOL models
Yichen Fu, Ben Dudson, Xiao Chen +4
The critical task of inferring anomalous cross-field transport coefficients is addressed in simulations of boundary plasmas with fluid models. A workflow for parameter inference in…