Verification of electromagnetic fluid-kinetic hybrid electron model in global gyrokinetic particle simulation

نویسنده

  • I. Holod
چکیده

The fluid-kinetic hybrid electron model is verified in global gyrokinetic particle simulation of linear electromagnetic drift-Alfv enic instabilities in tokamak. In particular, we have recovered the b-stabilization of the ion temperature gradient mode, transition to collisionless trapped electron mode, and the onset of kinetic ballooning mode as be (ratio of electron kinetic pressure to magnetic pressure) increases. VC 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4798392]

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry

The fluid-kinetic hybrid electron model for global electromagnetic gyrokinetic particle simulations has been formulated in toroidal geometry using magnetic coordinates, providing the capabilities to describe low frequency processes in electromagnetic turbulence with electron dynamics. In the limit of long wavelength and no parallel electric field our equations reduce to the ideal magnetohydrody...

متن کامل

Global gyrokinetic particle simulations with kinetic electrons

A toroidal, nonlinear, electrostatic fluid-kinetic hybrid electron model is formulated for global gyrokinetic particle simulations of driftwave turbulence in fusion plasmas. Numerical properties are improved by an expansion of the electron response using a smallness parameter of the ratio of driftwave frequency to electron transit frequency. Linear simulations accurately recover the real freque...

متن کامل

A gyrokinetic ion zero electron inertia fluid electron model for turbulence simulations

This paper describes the formulation of a hybrid model with fully gyrokinetic ions and a zero-inertia fluid model for the electrons. The electron fluid equations are derived from moments of the drift kinetic equation, taking the small mass ratio limit, but with finite electron temperature. This model eliminates the inertial Alfvén wave and any physics relating to electron transit motion, making...

متن کامل

A fluid–kinetic hybrid electron model for electromagnetic simulations

A fluid–kinetic hybrid electron model for electromagnetic simulations of finite-b plasmas is developed based on an expansion of the electron response using the electron–ion mass ratio as a small parameter. ~Here b is the ratio of plasma pressure to magnetic pressure.! The model accurately recovers low frequency plasma dielectric responses and faithfully preserves nonlinear kinetic effects ~e.g....

متن کامل

Gyrokinetic 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 کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013