论文标题
在有带电的空间碎片的情况下弯曲的灰尘离子声学孤独波
Bending of pinned dust ion acoustic solitary waves in presence of charged space debris
论文作者
论文摘要
我们考虑在有带电的空间碎片颗粒的情况下,在低地球轨道(LEO)区域中的低温等离子体环境。发现(2+1)尺寸非线性灰尘离子声波具有弱横向扰动,在系统中产生的动力学受强迫kadomtsev-petviashvili(KP)方程的控制,其中强迫术语取决于带电的空间碎屑函数。显示了X-T和X-Y平面中一些精确的灰尘离子声学孤立波解决方案的弯曲现象;考虑到不同类型的局部碎片功能而产生的。在速度随时间变化但幅度保持恒定的情况下,已经获得了一个精确固定的加速孤立波解决方案。碎屑功能在传播过程中也会发生变化。同样,已经为尘埃离子声波得出了一种特殊的精确孤立波。根据强迫碎屑功能的性质,这在空间维度上具有曲率。这种复杂的孤立波解决方案可能有助于对实际实验数据进行建模。
We consider a low temperature plasma environment in the Low Earth Orbital (LEO) region in presence of charged space debris particles. The dynamics of (2+1) dimensional nonlinear dust ion acoustic waves with weak transverse perturbation, generated in the system is found to be governed by a forced Kadomtsev-Petviashvili (KP) equation, where the forcing term depends on charged space debris function. The bending phenomena of some exact dust ion acoustic solitary wave solutions in x-t and x-y planes are shown; that are resulted from consideration of different types of possible localized debris functions. A family of exact pinned accelerated solitary wave solutions has been obtained where the velocity changes over time but the amplitude remains constant. The shape of debris function also changes during its propagation. Also, a special exact solitary wave solution has been derived for the dust ion acoustic wave; that gets curved in spatial dimensions with the curvature depending upon nature of forcing debris function. Such intricate solitary wave solutions may be useful in modelling real experimental data.