局域热源对磁岛热输运的影响
|
摘要
研究托卡马克等离子体磁岛内的热输运行为.应用局域高斯热源对磁岛加热来模拟电子回旋共振加热.对同时存在背景热源与局域高斯热源的情况,观察局域高斯热源对径向电子温度分布及热输运产生的变化,分析局域高斯热源对温度扰动及磁岛约束能量的影响.
We study heat transport in magnetic island in Tokamak. As electron cyclotron resonance heating(ECRH) has good locality it is used to simulate ECRH plasmas for local Gaussian heat source in magnetic island. In the case of simultaneous existence of background heat source and local Gaussian heat source, variation of radial electron temperature distribution and heat transport in local Gaussian heat source are studied. Analysis is made on influence of local Gaussian heat source on temperature perturbation and magnetic island constraint energy.
We study heat transport in magnetic island in Tokamak. As electron cyclotron resonance heating(ECRH) has good locality it is used to simulate ECRH plasmas for local Gaussian heat source in magnetic island. In the case of simultaneous existence of background heat source and local Gaussian heat source, variation of radial electron temperature distribution and heat transport in local Gaussian heat source are studied. Analysis is made on influence of local Gaussian heat source on temperature perturbation and magnetic island constraint energy.
引文
[1] HAROLD P F, JOHN K, MARSHALL N R. Finite-resistivity instabilities of a sheet pinch[J]. Physics of Fluids, 1963, 6(4):459-484.
[2] CHANG Z, CALLEN J D, FREDRICKSON E D, et al. Observation of nonlinear neoclassical pressure-gradient-driven tearing modes in TFTR[J]. Physical Review Letters, 1995, 74(23):4663-4666.
[3] ZOHM H, GANTENBEIN G, GUDE A, et al. Neoclassical tearing modes and their stabilization by electron cyclotron current drive in ASDEX upgrade[J]. Physics of Plasmas, 2001,8(5):2009-2016.
[4] GUNTER S,GUDE A, MARASCHEK M, et al. High-confinement regime at high β values due to a changed behavior of the neoclassical tearing modes[J].Physical Review Letters,2001,87 (27 Pt 1):275001.
[5] LA HAYE R J, LAO L L, STRAIT E J, et al. High beta tokamak operation in DIII-D limited at low density/collisionality by resistive tearing modes[J]. Nuclear Fusion, 1997, 37(3):397.
[6] FITZPATRICK R. Helical temperature perturbations associated with tearing modes in Tokamak plasmas[J]. Physics of Plasmas, 1995, 2(2):825-838.
[7] GUNTER S, YU Q,LACKNER K. Modelling of heat transport in magnetised plasmas using non-aligned coordinates [J]. Journal Computational Phys, 2005, 209(1):354-370.
[8] YU Q. Numerical modeling of diffusive heat transport across magnetic islands and local stochastic field[J]. Physics of Plasmas, 2006, 13(6):459.
[9] YU Q, GüNTER S, LACKNER K. Numerical modeling of nonlinear growth and saturation of neoclassical tearing modes[J]. Physics of Plasmas, 2004, 11(1):140-150.
[10] YU Q, GüNTER S, GIRUZZI G, et al. Modeling of the stabilization of neoclassical tearing modes by localized radio frequency current drive[J]. Physics of Plasmas, 2000, 7(1):312-322.
[11] YU Q, LACKNER K. Modelling of heat transport in magnetised plasmas using non-aligned coordinates[J]. Journal of Computational Physics, 2005, 209(1):354-370.
[2] CHANG Z, CALLEN J D, FREDRICKSON E D, et al. Observation of nonlinear neoclassical pressure-gradient-driven tearing modes in TFTR[J]. Physical Review Letters, 1995, 74(23):4663-4666.
[3] ZOHM H, GANTENBEIN G, GUDE A, et al. Neoclassical tearing modes and their stabilization by electron cyclotron current drive in ASDEX upgrade[J]. Physics of Plasmas, 2001,8(5):2009-2016.
[4] GUNTER S,GUDE A, MARASCHEK M, et al. High-confinement regime at high β values due to a changed behavior of the neoclassical tearing modes[J].Physical Review Letters,2001,87 (27 Pt 1):275001.
[5] LA HAYE R J, LAO L L, STRAIT E J, et al. High beta tokamak operation in DIII-D limited at low density/collisionality by resistive tearing modes[J]. Nuclear Fusion, 1997, 37(3):397.
[6] FITZPATRICK R. Helical temperature perturbations associated with tearing modes in Tokamak plasmas[J]. Physics of Plasmas, 1995, 2(2):825-838.
[7] GUNTER S, YU Q,LACKNER K. Modelling of heat transport in magnetised plasmas using non-aligned coordinates [J]. Journal Computational Phys, 2005, 209(1):354-370.
[8] YU Q. Numerical modeling of diffusive heat transport across magnetic islands and local stochastic field[J]. Physics of Plasmas, 2006, 13(6):459.
[9] YU Q, GüNTER S, LACKNER K. Numerical modeling of nonlinear growth and saturation of neoclassical tearing modes[J]. Physics of Plasmas, 2004, 11(1):140-150.
[10] YU Q, GüNTER S, GIRUZZI G, et al. Modeling of the stabilization of neoclassical tearing modes by localized radio frequency current drive[J]. Physics of Plasmas, 2000, 7(1):312-322.
[11] YU Q, LACKNER K. Modelling of heat transport in magnetised plasmas using non-aligned coordinates[J]. Journal of Computational Physics, 2005, 209(1):354-370.