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首页> 外文期刊>Plasma physics and controlled fusion >Full f gyrokinetic simulation of FT-2 tokamak plasma
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Full f gyrokinetic simulation of FT-2 tokamak plasma

机译：FT-2托卡马克等离子体的全功能动力学模拟

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A direct implicit ion polarization gyrokinetic full f particle-in-cell approach is implemented with kinetic electrons in global tokamak transport simulations. The method is applicable for calculations of rapid transients and steep gradients in the plasma, which is made feasible by recording the charge density change by the ion polarization drift together with the particle advancing. The code has been successfully validated against the linear and nonlinear predictions of the unstable mode growth rates and frequencies and their turbulent saturation level. A first global validation of the neoclassical radial electric field in the presence of turbulence for a heated collisional tokamak plasma is obtained. The neoclassical radial electric field together with the related geodesic acoustic mode oscillations is found to regulate the turbulence and heat and particle diffusion levels in a large aspect ratio tokamak at low plasma current.
机译：在全球托卡马克传输模拟中，利用运动电子实现了直接的隐式离子极化动能全f粒子在细胞内的方法。该方法适用于等离子体中的快速瞬变和陡峭梯度的计算，这通过记录由离子极化漂移引起的电荷密度变化以及粒子前进而变得可行。该代码已针对不稳定模式增长率和频率及其湍流饱和度的线性和非线性预测成功地进行了验证。对于湍流存在的托卡马克等离子体，在湍流的存在下获得了新古典径向电场的首次全球验证。发现新古典径向电场以及相关的测地线声模振荡可以在低等离子电流下以较大的长宽比托卡马克调节湍流，热和粒子扩散水平。

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