A Semi-Lagrangian Method for the Resolution of a Drift-Kinetic Equation Applied to ITG Studies
Ion turbulence is presumed to playa non negligible role in anomalous transport. Several gyrokinetic Particle-In-Cell (PIC) codes have already been developed to study the plasma instabilities caused by ion temperature gradients (ITG). The drawback of this kind of codes is the numerical noise. In this paper we solve a 4D non-linear drift- kinetic Vlasov problem by using a noiseless approach, called semi-Lagrangian method, which has already been applied to passing ion driven modes in 2D and linear trapped ion modes. We present the physical model used, the basics of the method coupled with a time-splitting algorithm and the first results obtained.
Bibliographic Reference: An oral report given at: The 28th EPS Conference of Controlled Fusion and Plasma Physics. Held in: Madeira (PT) June 2001
Record Number: 200013697 / Last updated on: 2001-09-18
Original language: en
Available languages: en