Abstract:Kinetic effects in the pedestal of a tokamakpedestal, transport, residual, flow 52.25. Fi, 52.25.Dg, 52.55.Fa We consider the effects of finite ExB on the residual and neoclassical ion heat transport and ion flow in the pedestal. For a tokamak pedestal with a density scale of the poloidal ion gyroradius the finite ExB drift modfies the ion orbits, moving the trapped-passing boundary towards the tail of the ion distribution function.
IntroductionIn many tokamak plasmas the width of the pedestal is observed t… Show more
“…Not surprisingly the accuracy of numerical simulations has been debated. Parra and Catto have questioned the ability of gyrokinetic codes to predict momentum transport with the required level of precision [78,79]. Pustovitov has produced a general formulation of momentum transport [80], while Miyato built a set of gyrokinetic equations, which is valid for high E × B drift velocity [81].…”
Section: Toroidal Momentum Transportmentioning
confidence: 99%
“…Catto presents the effects of a strong pedestal radial electric field. He finds that it enhances the residual ZF regulation of turbulence, decreases the ion heat diffusivity, acts to reverse the poloidal flow and enhances the bootstrap current [79]. Finally, Jenko finds that the residual electron transport can be attributed to ETG turbulence when using the parameters of ASDEX-Upgrade [51].…”
Section: Edge Turbulence Edge Transport Barriers Density Limitmentioning
This paper presents a summary of the papers presented at the 23rd IAEA Fusion Energy Conference (Daejeon, October 2010) on magnetic confinement theory and modelling.
“…Not surprisingly the accuracy of numerical simulations has been debated. Parra and Catto have questioned the ability of gyrokinetic codes to predict momentum transport with the required level of precision [78,79]. Pustovitov has produced a general formulation of momentum transport [80], while Miyato built a set of gyrokinetic equations, which is valid for high E × B drift velocity [81].…”
Section: Toroidal Momentum Transportmentioning
confidence: 99%
“…Catto presents the effects of a strong pedestal radial electric field. He finds that it enhances the residual ZF regulation of turbulence, decreases the ion heat diffusivity, acts to reverse the poloidal flow and enhances the bootstrap current [79]. Finally, Jenko finds that the residual electron transport can be attributed to ETG turbulence when using the parameters of ASDEX-Upgrade [51].…”
Section: Edge Turbulence Edge Transport Barriers Density Limitmentioning
This paper presents a summary of the papers presented at the 23rd IAEA Fusion Energy Conference (Daejeon, October 2010) on magnetic confinement theory and modelling.
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