High resolution numerical simulations of plasma turbulence driven by ion temperature gradients in the presence of magnetic field inhomogeneities have been performed with special attention to the behavior of the anomalous ion energy flux. The pressure gradient evolution is treated consistently with energy transport, allowing for the study of the saturated state in situations of relevance to tokamak plasmas. It is found that the presence of large‐scale coherent structures significantly affects the turbulent losses, leading to a reduction of the flux with respect to mixing length estimates.
Ottaviani, M., Romanelli, F., Benzi, R., Briscolini, R., Santangelo, P., Succi, S. (1990). Numerical simulations of ion temperature gradient-driven turbulence. PHYSICS OF FLUIDS. B, PLASMA PHYSICS, 2(1), 67-74 [10.1063/1.859540].
Numerical simulations of ion temperature gradient-driven turbulence
ROMANELLI, FRANCESCO;BENZI, ROBERTO;
1990-01-01
Abstract
High resolution numerical simulations of plasma turbulence driven by ion temperature gradients in the presence of magnetic field inhomogeneities have been performed with special attention to the behavior of the anomalous ion energy flux. The pressure gradient evolution is treated consistently with energy transport, allowing for the study of the saturated state in situations of relevance to tokamak plasmas. It is found that the presence of large‐scale coherent structures significantly affects the turbulent losses, leading to a reduction of the flux with respect to mixing length estimates.File | Dimensione | Formato | |
---|---|---|---|
PFB2_67_90.pdf
solo utenti autorizzati
Licenza:
Non specificato
Dimensione
945.14 kB
Formato
Adobe PDF
|
945.14 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.