Intensification of magnetic field by concentrate-and-stretch of magnetic flux lines
Intensification of magnetic field by concentrate-and-stretch of magnetic flux lines
复制标题
通过磁通线的集中和拉伸来增强磁场
DOI：
10.1063/1.869533
复制
发表时间：
1998
影响因子：
4.6
通讯作者：
S. Kida
中科院分区：
文献类型：
--
作者：
H. Kitauchi;S. Kida
通过对旋转球壳中Boussinesq磁流体动力学方程组数值解的分析，研究了热对流产生磁场的机理。外边界层、赤道面和内边界层中的汇附近的磁力线通过集中和拉伸而得到加强，并在其下游产生强磁场。无论流体元素是加速还是减速，磁力线都在那里被拉伸。
The mechanism of generation of magnetic field by thermal convection is investigated by analyzing the numerical solution to the Boussinesq magneto-hydrodynamic equations in a rotating spherical shell. The magnetic flux lines are intensified by concentrate-and-stretch around sinks in the outer boundary layer, on the equatorial plane and in the inner boundary layer, and the strong magnetic field is generated downstream of them. The magnetic flux lines are being stretched there irrespective of whether fluid elements accelerate or decelerate.