Momentum transport in the vicinity of q<SUB>min</SUB> in reverse shear tokamaks due to ion temperature gradient turbulence - Archive ouverte HAL
Article Dans Une Revue Physics of Plasmas Année : 2014

Momentum transport in the vicinity of qmin in reverse shear tokamaks due to ion temperature gradient turbulence

R. Singh
  • Fonction : Auteur
Hogun Jhang
  • Fonction : Auteur
P.H. Diamond
  • Fonction : Auteur

Résumé

This paper presents effects of finite ballooning angles on linear ion temperature gradient (ITG) driven mode and associated heat and momentum flux in Gyrokinetic flux tube simulation GENE. It is found that zero ballooning angle is not always the one at which the linear growth rate is maximum. The ITG mode acquires a short wavelength (SW) branch (k⊥ρi > 1) when growth rates maximized over all ballooning angles are considered. However, the SW branch disappears on reducing temperature gradient showing characteristics of zero ballooning angle SWITG in case of extremely high temperature gradient. Associated heat flux is even with respect to ballooning angle and maximizes at nonzero ballooning angle while the parallel momentum flux is odd with respect to the ballooning angle.

Dates et versions

hal-01550961 , version 1 (29-06-2017)

Identifiants

Citer

Rameswar Singh, R. Singh, Hogun Jhang, P.H. Diamond. Momentum transport in the vicinity of qmin in reverse shear tokamaks due to ion temperature gradient turbulence. Physics of Plasmas, 2014, 21 (1), pp.012302. ⟨10.1063/1.4861625⟩. ⟨hal-01550961⟩
75 Consultations
0 Téléchargements

Altmetric

Partager

More