Showing 1 - 2 of 2 UKAEA Paper Results
2022
UKAEA-STEP-CP(23)08
Daniel Kennedy Bhavin S Patel Colin M Roach
Microinstabilities often result in turbulence that influences energy confinement in tokamak discharges. One such microinstability, of particular importance to the design of next-generation spherical tokamaks (STs) such as STEP [1], is the microtearing mode (MTM), a tearing-parity mode centred on high-order rational surfaces. MTMs are short-wavel…
Preprint2022
UKAEA-CCFE-PR(22)03
D. R. Hatch C. Michoski D. Kuang B.Chapman-Oplopoiou M. Curie M. Halfmoon E.Hassan M. Kotschenreuther S. M. Mahajan G. Merlo M.J. Pueschel J. Walker C. D. Stephens
This paper reports on the development of reduced models for electron temperature gradient (ETG) driven transport in the pedestal. Model development is enabled by a set of 61 nonlinear gyrokinetic simulations with input parameters taken from the pedestals in a broad range of experimental scenarios. The simulation data has been consolidated in a new …
Preprint Published