18 citations · 43 across the 8 of their papers we have counts for
8 papers
Effects of zonal flows on transport crossphase in dissipative trapped-electron mode turbulence in edge plasmas
M. Leconte, R. Singh
For H-mode, standard decorrelation theory predicts that it is the turbulence intensity that is mainly affected via flow-induced shearing of turbulent eddies. However, for…
ETG Turbulence Induced Energy flux in the Large Laboratory Plasma
Prabhakar Srivastav, Rameswar Singh, L. M. Awasthi +4
The Large Volume Plasma Device (LVPD) has successfully demonstrated excitation of Electron Temperature Gradient (ETG) driven turbulence in finite plasma beta condition , where the…
Enhancement of zonal flow damping due to resonant magnetic perturbations in the background of an equilibrium sheared flow
M. Leconte, R. Singh
Using a parametric interaction formalism, we show that the equilibrium sheared rotation can enhance the zonal flow damping effect found in Ref. [M. Leconte and P.H. Diamond, \emph{…
Geodesic acoustic modes with poloidal mode couplings ad infinitum
Rameswar Singh, Ö D Gürcan, X Garbet +4
Geodesic acoustic modes (GAMs) are studied, for the first time, including all poloidal mode couplings using drift reduced fluid equations. The nearest neighbor coupling patte…
Geodesic acoustic modes in a fluid model of tokamak plasma : the effects of finite beta and collisionality
Rameswar Singh, A Storelli, Ozgur D Gurcan +4
Starting from the Braginskii equations, relevant for the tokamak edge region, a complete set of nonlinear equations for the geodesic acoustic modes (GAM) has been derived which inc…
A quasi-linear analysis of the impurity effect on turbulent momentum transport and residual stress
S. H. Ko, Hogun Jhang, R. Singh
We study the impact of impurities on turbulence driven intrinsic rotation (via residual stress) in the context of the quasi-linear theory. A two-fluid formulation for main and impu…