Nonlinear simulations of particle source effects on edge localized mode
Nonlinear simulations of particle source effects on edge localized mode
复制标题
粒子源对边缘局部模式影响的非线性模拟
DOI：
10.1063/1.4938045
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发表时间：
2015-12
影响因子：
2.2
通讯作者：
Tang C. J.
中科院分区：
文献类型：
--
作者：
Huang J.;Chen S. Y.;Wang Z. H.;Tang C. J.
利用BOUT++程序系统地研究了不同强度和位置的粒子源对边缘局域模的影响。结果表明，当PS位于基座的中部或底部时，ELM的尺寸随着PS强度的增加而显著减小。PS对ELM的影响取决于PS的位置。当平台位于平台顶部时，剥离-气球状（P-B）模式可以从压力梯度中提取更多的自由能，并在初始碰撞阶段成长为大的丝状体，PS可以抑制模式谱的展宽，从而导致更多的能量损失。当它位于基座的中部或底部时，可以抑制P-B模对自由能的提取，并产生小丝。在湍流输运阶段，当PS位于中部时，较宽的模谱抑制了湍流输运，而当PS位于底部时，纬向流对湍流输运起着重要的阻尼作用。
The effects of particle source (PS) with different intensities and located positions on Edge Localized Mode (ELM) are systematically studied with BOUT++ code. The results show the ELM size strongly decreases with increasing the PS intensity once the PS is located in the middle or bottom of the pedestal. The effects of PS on ELM depend on the located position of PS. When it is located at the top of the pedestal, peeling-ballooning (P-B) modes can extract more free energy from the pressure gradient and grow up to be a large filament at the initial crash phase and the broadening of mode spectrum can be suppressed by PS, which leads to more energy loss. When it is located in the middle or bottom of the pedestal, the extraction of free energy by P-B modes can be suppressed, and a small filament is generated. During the turbulence transport phase, the broader mode spectrum suppresses the turbulence transport when PS is located in the middle, while the zonal flow plays an important role in damping the turbulence transport when PS is located at the bottom.
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影响因子：
2.2
作者：
P. Snyder;H. Wilson;X. Xu
通讯作者：
P. Snyder;H. Wilson;X. Xu
影响因子：
2.2
作者：
B. Scott
通讯作者：
B. Scott
影响因子：
2.2
作者：
P. Xi;X. Xu;Xiaogang Wang;T. Xia
通讯作者：
P. Xi;X. Xu;Xiaogang Wang;T. Xia
影响因子：
2.2
作者：
B. Dudson;X. Q. Xu;M. V. Umansky;H. Wilson;P. Snyder
通讯作者：
B. Dudson;X. Q. Xu;M. V. Umansky;H. Wilson;P. Snyder
影响因子：
8.6
作者：
M. Becoulet;F. Orain;Gta Guido Huijsmans;S. Pamela;P. Cahyna;M. Hoelzl;X. Garbet;E. Franck;E. Sonnendrücker;G. Dif-Pradalier;C. Passeron;G. Latu;J. Morales;E. Nardon;A. Fil;B. Nkonga;A. Ratnani;V. Grandgirard
通讯作者：
M. Becoulet;F. Orain;Gta Guido Huijsmans;S. Pamela;P. Cahyna;M. Hoelzl;X. Garbet;E. Franck;E. Sonnendrücker;G. Dif-Pradalier;C. Passeron;G. Latu;J. Morales;E. Nardon;A. Fil;B. Nkonga;A. Ratnani;V. Grandgirard