A poloidal pressure bump at the tokamak edge drives shear flows and radial electric fields whose sign depends on the bump's location relative to the midplane, offering a qualitative explanation for L-H threshold dependences and MGI flow patterns.
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Role of poloidal-pressure-asymmetry-driven flows in L-H transition and impurity transport during MGI shutdowns
A poloidal pressure bump at the tokamak edge drives shear flows and radial electric fields whose sign depends on the bump's location relative to the midplane, offering a qualitative explanation for L-H threshold dependences and MGI flow patterns.