Flexibility and rigidity of free boundary MHD equilibria
Flexibility and rigidity of free boundary MHD equilibria
复制标题
自由边界 MHD 平衡的柔性和刚性
DOI:
10.1088/1361-6544/ac5d6a
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发表时间:
2022
期刊:
影响因子:
1.7
通讯作者:
Ginsberg, Daniel
中科院分区:
文献类型:
--
作者:
Constantin, Peter;Drivas, Theodore D;Ginsberg, Daniel
We study stationary free boundary configurations of an ideal incompressible magnetohydrodynamic fluid possessing nested flux surfaces. In 2D simply connected domains, we prove that if the magnetic field and velocity field are never commensurate, the only possible domain for any such equilibria is a disk, and the velocity and magnetic field are circular. We give examples of non-symmetric equilibria occupying a domain of any shape by imposing an external magnetic field generated by a singular current sheet charge distribution (external coils). Some results carry over to 3D axisymmetric solutions. These results highlight the importance of external magnetic fields for the existence of asymmetric equilibria.
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影响因子:
3.3
作者:
M. Landreman
通讯作者:
M. Landreman
影响因子:
2.6
作者:
A. Enciso;A. Luque;D. Peralta
通讯作者:
D. Peralta
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
H. Grad
通讯作者:
H. Grad
影响因子:
2.6
作者:
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通讯作者:
N. Nadirashvili
影响因子:
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作者:
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通讯作者:
Ginsberg, Daniel