Impurity transport in JET is studied using interpretative analysis and predictive simulations of JET discharges. The simulations are based on transport models for Ion-Temperature- Gradient (ITG) mode and Trapped-Electron (TE) mode driven turbulence and neoclassical transport. The properties of the impurity transport coefficients obtained with fluidas well as quasi-linear and nonlinear gyrokinetic simulations using the code GENE are compared and discussed. In particular, the sign of the impurity convective velocity (pinch) and the scaling of the normalised impurity density peaking factor -R∇nZ/nZwith impurity charge number is investigated. Predictive simulations of temperatures (Te, Ti=TZ) and densities (ne, nZ) are performed with the JETTO/SANCO core transport code.
|Publication status||Published - 2010|
|Event||37th EPS Conference on Plasma Physics 2010, EPS 2010 - , Ireland|
Duration: 1 Jan 2010 → …
|Conference||37th EPS Conference on Plasma Physics 2010, EPS 2010|
|Period||1/1/10 → …|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
Nordman, H., Skyman, A., Strand, P., Giroud, C., Jenko, F., Merz, F., ... Tala, T. (2010). Modelling of impurity transport experiments at the joint European torus. Paper presented at 37th EPS Conference on Plasma Physics 2010, EPS 2010, Ireland.