4 papers
MONKES: a fast neoclassical code for the evaluation of monoenergetic transport coefficients
F. J. Escoto, J. L. Velasco, I. Calvo +2
MONKES is a new neoclassical code for the evaluation of monoenergetic transport coefficients in stellarators. By means of a convergence study and benchmarks with other codes, it is…
Reduction or enhancement of stellarator turbulence by impurities
J. M. GarcÃa-Regaña, I. Calvo, F. I. Parra +1
A systematic study of the impact of impurities on the turbulent heat fluxes is presented for the stellarator Wendelstein 7-X (W7-X) and, for comparison, the Large Helical Device an…
Piecewise omnigenous stellarators
J. L. Velasco, I. Calvo, F. J. Escoto +3
In omnigeneous magnetic fields, charged particles are perfectly confined in the absence of collisions and turbulence. For this reason, the magnetic configuration is optimized to be…
Ion temperature and density gradient driven instabilities and turbulence in Wendelstein 7-X close to the stability threshold
L. Podavini, A. Zocco, J. M. GarcÃa-Regaña +4
Electrostatic gyrokinetic instabilities and turbulence in the Wendelstein 7-X stellarator are studied. Particular attention is paid to the ion-temperature-gradient (ITG) instabilit…