31 citations · 217 across the 21 of their papers we have counts for
4 papers · 2 filters
Turbulent momentum transport due to the beating between different tokamak flux surface shaping effects
Justin Ball, Felix I. Parra
Introducing up-down asymmetry into the tokamak magnetic equilibria appears to be a feasible method to drive fast intrinsic toroidal rotation in future large devices. In this paper…
Up-down asymmetric tokamaks
Justin Ball
Bulk toroidal rotation has proven capable of stabilising both dangerous MHD modes and turbulence. In this thesis, we explore a method to drive rotation in large tokamaks: up-down a…
Effect of the Shafranov shift and the gradient of on intrinsic momentum transport in up-down asymmetric tokamaks
Justin Ball, Felix I. Parra, Jungpyo Lee +1
Tokamaks with up-down asymmetric poloidal cross-sections spontaneously rotate due to turbulent transport of momentum. In this work, we investigate the effect of the Shafranov shift…
Scaling of up-down asymmetric turbulent momentum flux with poloidal shaping mode number in tokamaks
Justin Ball, Felix I. Parra
Breaking the up-down symmetry of tokamaks removes a constraint limiting intrinsic momentum transport, and hence toroidal rotation, to be small. Using gyrokinetic theory, we study t…