Considering the influence of ion's nonlinear polarization drift on Solitary Kinetic Alfven Wave ( SKAW), the character of the low-frequency dip SKAW in the magnetic plasma is investigated with the two-fluid mode. 考虑离子极化漂移中非线性项对动力学Alfven孤波特性的影响,采用双流体模型研究磁化等离子体中低频动力学Alfven稀疏型孤波的特性。
But it has weak effect on the SKAW when the value of β is bigger(β-0.1). 而在较大值时(β~0.1),此修正作用不大。
And ion's nonlinear polarization drift has great effect on the SKAW when the value of β is smaller(β-10-6-10-4). It can not be neglected. 同时发现在β值较小(10-6-10-4)时,离子极化漂移非线性项对动力学Alfven孤波特性有较大的影响,不可忽略。
Because of the SKAW having the parallel electric field, the solitary wave is important for the acceleration and energy transmission of charged particles in magnetic plasma. 由于动力学Alfven孤波允许平行电场存在,故它对等离子体中带电粒子的加速和能化起重要作用;