Gyrokinetic investigation of Alfven instabilities in the presence of turbulence

Biancalani A.; Bottino A.; Di Siena A.; Gurcan O.; Hayward-Schneider T.; Jenko F.; Lauber P.; Mishchenko A.; Morel P.; Novikau I; Vannini F.; Villard L.; Zocco A.

首页> 外文期刊>Plasma physics and controlled fusion >Gyrokinetic investigation of Alfven instabilities in the presence of turbulence

【24h】

Gyrokinetic investigation of Alfven instabilities in the presence of turbulence

机译：湍流存在下的Alfven稳定性的热能调查

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The nonlinear dynamics of beta-induced Alfven eigenmodes (BAEs) driven by energetic particles (EPs) in the presence of ion-temperature-gradient turbulence is investigated, by means of selfconsistent global gyrokinetic simulations and analytical theory. A tokamak magnetic equilibrium with large aspect ratio and reversed shear is considered. A previous study of this configuration has shown that the electron species plays an important role in determining the nonlinear saturation level of a BAE in the absence of turbulence (Biancalani et al 2020 J. Plasma Phys.). Here, we extend the study to a turbulent plasma. The EPs are found modify the heat fluxes by introducing energy at the large spatial scales, mainly at the toroidal mode number of the dominant BAE and its harmonics. In this regime, BAEs are found to carry a strong electron heat flux. The feed-back of the global relaxation of the temperature profiles induced by the BAE, and on the turbulence dynamics, is also discussed.

机译：利用自洽全局回转动力学模拟和解析理论，研究了离子温度梯度湍流作用下高能粒子驱动的β诱导阿尔芬本征模（BAE）的非线性动力学。考虑了具有大纵横比和反向剪切的托卡马克磁平衡。之前对这种构型的研究表明，在没有湍流的情况下，电子种类在确定BAE的非线性饱和水平方面起着重要作用（Biancalani等人2020 J.Plasma Phys.）。在这里，我们将研究扩展到湍流等离子体。发现EPs通过在大空间尺度上引入能量来改变热通量，主要是在占主导地位的BAE及其谐波的环形模数处。在这种情况下，人们发现BAE携带着强大的电子热流。文中还讨论了BAE引起的温度廓线整体弛豫的反馈以及对湍流动力学的影响。

著录项

来源
《Plasma physics and controlled fusion》 |2021年第6期|共18页
作者
Biancalani A.; Bottino A.; Di Siena A.; Gurcan O.; Hayward-Schneider T.; Jenko F.; Lauber P.; Mishchenko A.; Morel P.; Novikau I; Vannini F.; Villard L.; Zocco A.;
展开▼
作者单位

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Univ Texas Austin 201 E 24th St Austin TX 78712 USA;

Univ Paris Saclay Lab Phys Plasmas CNRS Ecole Polytech Sorbonne Univ Observ Paris F-91120 Palaiseau France;

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Max Planck Inst Plasma Phys D-17491 Greifswald Germany;

Univ Paris Saclay Lab Phys Plasmas CNRS Ecole Polytech Sorbonne Univ Observ Paris F-91120 Palaiseau France;

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Max Planck Inst Plasma Phys D-85748 Garching Germany;

Ecole Polytech Fed Lausanne EPFL Swiss Plasma Ctr SPC CH-1015 Lausanne Switzerland;

Max Planck Inst Plasma Phys D-17491 Greifswald Germany;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类等离子体物理学;
关键词
Alfvamp; 233; n instabilities; turbulence; gyrokinetics; energetic particles;

机译：alfv＆amp;233;n不稳定性;湍流;gyrokinetics;精力充沛的粒子;

相似文献

外文文献
中文文献
专利

1. Linear gyrokinetic simulations of reversed shear Alfven eigenmodes and ion temperature gradient modes in DIII-D tokamak [J] . Hongyu WANG, Pengfei LIU, Zhihong LIN, 等离子体科学和技术（英文版） . 2021,第001期
2. Implementation of field-aligned coordinates in a semi-Lagrangian gyrokinetic code for tokamak turbulence simulation [J] . Lei YE, Xiaotao XIAO, Yingfeng XU, 等离子体科学和技术（英文版） . 2018,第007期
3. Zonal Jet Creation from Secondary Instability of Drift Waves for Plasma Edge Turbulence [J] . Di QI, Andrew J.MAJDA 数学年刊B辑（英文版） . 2019,第006期
4. Turing Instability and Pattern Induced by Cross-Diffusion for a Nonlinear Reaction-Diffusion System of Turbulence-Shear Flow Interaction [J] . ZHOU Hui, PENG Yahong 东华大学学报（英文版） . 2017,第005期
5. Editorial: Recent advances in hydrodynamic instability and transition to turbulence [J] . Luca Brandt, Jianjun Tao 力学快报(英文版) . 2015,第003期
6. Linear gyrokinetic particle-in-cell simulations of Alfven instabilities in tokamaks [J] . Biancalani A., Bottino A., Briguglio S., Physics of plasmas . 2016,第1期

机译：托卡马克人中Alfven不稳定性的线性陀螺动力学单元内模拟
7. Gyrokinetic secondary instability theory for electron and ion temperature gradient driven turbulence [J] . Plunk G Physics of plasmas . 2007,第11期

机译：电子和离子温度梯度驱动湍流的动力学动力学二级不稳定性理论
8. Secondary instabilities of large scale flow and magnetic field in the electromagnetic short wavelength drift-Alfven wave turbulence [J] . Smolyakov A., Diamond P., Kishimoto Y. Physics of plasmas . 2002,第9期

机译：电磁短波漂移-Alfven波湍流中大尺度流动和磁场的次要不稳定性
9. INVESTIGATION ON EFFECT OF INLET FLOW TURBULENCE ON THE COMBUSTION INSTABILITY USING SIMULTANEOUS PIV AND CH* CHEMILUMINESCENCE IN A BACKWARD FACING STEP COMBUSTOR [C] . Pankaj Pancharia, Vikram Ramanan, Baladandayuthapani Nagarajan, ASME Turbo Expo: Turbomachinery Technical Conference and Exposition . 2019

机译：后向步进燃烧器中同时进行的PIV和CH *化学发光研究进气流湍流对燃烧不稳定性的影响
10. Gyrokinetic Particle Simulation of Spectral Cascade and Collisionless Dissipation in Kinetic Alfven Wave Turbulence. [D] . Cheng, Xi. 2011

机译：动力学Alfven波湍流中谱级联和无碰撞耗散的动能粒子模拟。
11. Elastic Alfven waves in elastic turbulence [O] . Atul Varshney, Victor Steinberg -1

机译：弹性湍流中的Alfven弹性波
12. Gyrokinetic Simulations of Short-wavelength ITG Instability in the Presence of a Static Magnetic Island [O] . P. Hilscher, K. Imadera, J.Q. Li, 100

机译：静态磁岛存在下短波ITG不稳定性的运动学仿真
13. Trapped Particle Instability and Flute Instability in Tandem Mirror; Scale Separation Closure in Alfven Wave Turbulence [R] . Chen, C. 1988

机译：串联镜中的陷阱粒子不稳定性和长笛不稳定性; alfven波湍流中的尺度分离闭合

Gyrokinetic investigation of Alfven instabilities in the presence of turbulence

摘要

著录项

相似文献

相关主题

期刊订阅