Electromagnetic effects on toroidal momentum transport
نویسندگان
چکیده
منابع مشابه
Electromagnetic effects on toroidal momentum transport
A parametric study of electromagnetic effects on toroidal momentum transport has been performed. The work is based on a new version of the Weiland model where symmetry breaking toroidicity effects derived from the stress tensor have been taken into account. The model includes a self-consistent calculation of the toroidal momentum diffusivity, which contains both diagonal and off-diagonal contri...
متن کاملTurbulent Transport of Toroidal Angular Momentum in Low Flow Gyrokinetics
We derive a self-consistent equation for the turbulent transport of toroidal angular momentum in tokamaks in the low flow ordering that only requires solving gyrokinetic Fokker-Planck and quasineutrality equations correct to second order in an expansion on the gyroradius over scale length. We also show that according to our orderings the long wavelength toroidal rotation and the long wavelength...
متن کاملBlob-induced toroidal momentum transport in simple magnetized plasmas
The link between toroidal flows and density blobs is experimentally demonstrated in TORPEX simple magnetized plasmas: momentum is transferred from an ideal-interchange mode to density blobs. The phase shift between the toroidal flow and the density perturbations observed in the interchange mode where the blob is born is conserved along the blob radial trajectory. This leads to dipolar structure...
متن کاملTurbulent transport of toroidal angular momentum in fusion plasmas
Global nonlinear gyrokinetic simulations of ion temperature gradient (ITG) and collisionless trapped electron mode (CTEM) turbulence find significant spinning up of a plasma in the directions opposite for CTEM and ITG turbulence. The outward momentum convection by the particle flux could be strong enough to overcome the inward momentum pinch and reverse the radial direction of the convective mo...
متن کاملIntegrated Modeling Simulations of Toroidal Momentum Transport in Tokamaks
Simulations of JET H-mode and hybrid discharges are carried out using the PTRANSP predictive integrated modeling code to compute the time evolution of the plasma toroidal rotation frequency profile as well as the temperature and current density profiles. Momentum and thermal transport coefficients are computed using the recently advanced Weiland model together with a model for transport driven ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2010
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.3511441