On the role of numerical dissipation in gyrokinetic Vlasov simulations of plasma microturbulence
نویسندگان
چکیده
Article history: Received 22 July 2009 Received in revised form 18 March 2010 Accepted 22 April 2010 Available online 28 April 2010
منابع مشابه
An efficient numerical method for gyrokinetic δ f Vlasov simulations in helical plasmas
Three-dimensional configurations of helical plasmas bring numerical difficulties to gyrokinetic simulations of plasma turbulent transport in toroidal fusion devices. Watanabe et al. have investigated the ion-temperature-gradient (ITG)-driven turbulence in helical plasmas by means of the gyrokinetic Vlasov simulation code GVK [1]. Because of a large number of grid points along a magnetic field l...
متن کاملDevelopment and application of Eulerian and Particle-in-Cell gyrokinetic codes for studying the effect of non-adiabatic passing electron dynamics on microturbulence
In tokamak fusion plasmas, micro-turbulence transport is known to be the cause of large losses of heat and particles. The present work deals with the study of electrostatic microturbulence transport driven by instabilities of essentially two types: the ion temperature gradient (ITG) modes and the trapped electron modes (TEM). The plasma is described within the gyrokinetic framework, which permi...
متن کاملGyrokinetic Particle Simulation of Microturbulence in Tokamak Plasmas
Recent progress in gyrokinetic simulations of plasma microturbulence using GTC code is reported. Several topics are covered, including anomalous transport of toroidal angular momentum, simulations in real geometry, validation and verification efforts, and extension of the simulation model to include the magnetic field perturbations. Simulations of momentum transport driven by the ion temperatur...
متن کاملGyrokinetic particle-in-cell simulations of plasma microturbulence on advanced computing platforms
Since its introduction in the early 1980s, the gyrokinetic particle-in-cell (PIC) method has been very successfully applied to the exploration of many important kinetic stability issues in magnetically confined plasmas. Its self-consistent treatment of charged particles and the associated electromagnetic fluctuations makes this method appropriate for studying enhanced transport driven by plasma...
متن کاملParticle-in-cell simulation with Vlasov ions and drift kinetic electrons
There are certain limitations in using gyrokinetic ions for simulations of turbulent transport in tokamak plasmas. Applications where Vlasov ions might be more appropriate include the electron temperature gradient driven turbulence, edge turbulence with steep density gradient, and magnetic reconnection in a weak guide field. In such cases the ion gyrokinetic model presently used in simulations ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Computer Physics Communications
دوره 181 شماره
صفحات -
تاریخ انتشار 2010