Numerical study of physical properties of resistive wall modes in tokamaks |
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| Authors: | Xia Xin-Nian Liu Yue Liu Chao He Yu-Ling and Xia Guo-Liang |
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| Affiliation: | ( Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology) Ministry of Education, School of Physics and Optoelectronic Engineelng, Dalian University of Technology, Dalian 116024, China) |
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| Abstract: | The effect of plasma with toroidal rotation on the resistive wall modes in tokamaks is studied numerically. An eigenvalue method is adopted to calculate the growth rate of the modes for changing plasma resistivity and plasma density distribution, as well as the diffusion time of magnetic field through the resistive wall. It is found that the resistive wall mode can be suppressed by the toroidal rotation of the plasma. Also, the growth rate of the resistive wall mode decreases when the edge plasma density is the same as the core plasma density, but it only changes slightly with the plasma resistivity. |
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| Keywords: | tokamak resistive wall mode toroidal rotation plasma density distribution |
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