Publications (14)
Zonal density staircase formation in collisional drift-wave turbulence
M. Leconte, T. Kobayashi
Turbulence-driven quasi-stationnary structures known as 'staircase' are investigated using the collisional drift-wave model. Two-dimensional simulations show that the ability of zo…
Linear analysis and crossphase dynamics in the -driven CTEM fluid model
M. Leconte, Lei Qi, J. Anderson
Collisionless trapped-electron mode (CTEM) turbulence is an important contributor to heat and particle transport in fusion devices. The ITG/TEM fluid models are rarely treated anal…
Impact of Resonant Magnetic Perturbations on Zonal Modes, Drift-Wave Turbulence and the L-H Transition Threshold
M. Leconte, P. H. Diamond, Y. Xu
We study the effects of Resonant Magnetic Perturbations (RMPs) on turbulence, flows and confinement in the framework of resistive drift-wave turbulence. This work was motivated, in…
Pattern of Reaction Diffusion Front in Laminar Flows
M. Leconte, J. Martin, N. Rakotomalala +1
Autocatalytic reaction between reacted and unreacted species may propagate as solitary waves, namely at a constant front velocity and with a stationary concentration profile, resul…
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, fo…
Phase-mixing v.s. phase synchronization in the dynamics of flow-shear induced edge transport barrier
M. Leconte
Nonlinear relaxation oscillations of flow-shear induced transport barriers can be qualitatively reproduced using a phenomenological critical-gradient model [M. Leconte, Y.M. Jeon a…