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连续谱频域中高能量粒子激发的阿尔芬不稳定性 被引量：2

Alfvén Instatabilities Excited by Energetic Particles in the Frequency Range of Alfvén Continuum
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摘要 本文通过线性回旋动理学与磁流体力学(MHD)的混合模拟程序,采用(s,α)平衡模型。通过高能量粒子激发连续谱中的阿尔芬模式,研究了NSTX和MAST运行条件下连续谱中的αTAE和gap中的TAE各自特点,发现连续谱中的αTAE可存在于gap上方和gap下方,能被势阱很好的束缚。gap中的TAE可以无需势阱所束缚。还在MHD条件下,演示了环效应所引发的阿尔芬频隙,可以减小连续谱对本征模的耗散作用。 Resonant excitations of alfvén eienmodes by energetic particles in continuous spectrum was investigated employing a gyrokinetic-magentohdrodynamic（ MHD） hybrid simulation code upon a（ s,α） equilibrium model. It is found that the stability features of the αTAE in continuous spectrum and the TAE in gap under the experiment conditions of NSTX and MAST,The αTAE can be trapped in potential wells,thus in dependent of the toroidal Alfvén freguency gap. It also demonstrates that the toroidal effect can reduce the eienmodes dissipation via alfvén continuum.
作者 郑义鸿 胡双辉 田换娜 秦志豪
机构地区 贵州大学理学院
出处 《贵州大学学报（自然科学版）》 2015年第3期23-27,共5页 Journal of Guizhou University:Natural Sciences
基金 国家自然科学基金项目(11275053)
关键词 连续谱 阿尔芬频隙 阿尔芬本征模 高能量粒子 Alfvén continuum Alfvén frequency gap Alfvén eigmode energetic particles
分类号 O534.2 [理学—等离子体物理]
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参考文献21

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二级参考文献29

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共引文献7

同被引文献21

  • 1丁厚昌,黄锦华.受控核聚变研究的进展和展望[J].自然杂志,2006,28(3):143-149. 被引量：19
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贵州大学学报（自然科学版）
2015年 第3期

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