【摘要】 采用柱螺旋坐标系 ,把广义磁流体力学方程组简化为四元一阶微分方程组。在ω/ωci→ 0时 ,该方程组化为Hain L櫣ｓｔ方程 ;而当p→ 0 时 ,即是KAppert理论。在这两种情况下 ,Alfv啨ｎ波共振层都是奇异的。Alfv啨ｎ波共振层的奇异性来源于极限的选取谠独爰薜那?,离子的惯性会使理想磁流体中Alfv啨ｎ波共振层的奇异性消失 ,且使磁流体力学波之间相互耦合更多还原

【Abstract】 In cylindrical helical coordinates,generalized magnetohydrodynamic (MHD) equations are reduced to four first order differential equations.The K Appert theory and Hain Lüst equation are two special cases resulting from p→0 and ω/ω ci →0, respectively.In these two cases,the Alfvén resonant layers are singular.The singularities of the equations at the Alfvén resonant layers are caused by taking the limits.Far from the limit region, ion inertia results in the disappearance of singularity of the equations at the Alfvén resonant layer and coupling of the MHD waves.更多还原