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Residual parallel Reynolds stress due to turbulence intensity gradient in tokamak plasmas
Abstract
A novel mechanism for driving residual stress in tokamak plasmas based on k symmetry breaking by the turbulence intensity gradient is proposed. The physics of this mechanism is explained and its connection to the wave kinetic equation and the wave-momentum flux is described. Applications to the H-mode pedestal in particular to internal transport barriers, are discussed. Also, the effect of heat transport on the momentum flux is discussed. © 2010 American Institute of Physics.
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