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首页> 外文期刊>Physics of plasmas >Nonlinear low frequency wave propagation in electronegative dusty plasma: Effects of adiabatic and nonadiabatic charge variations
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Nonlinear low frequency wave propagation in electronegative dusty plasma: Effects of adiabatic and nonadiabatic charge variations

机译:负电尘埃等离子体中的非线性低频波传播:绝热和非绝热电荷变化的影响

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摘要

The effects of both adiabatic and nonadiabatic charge variations on small but finite amplitude nonlinear dust acoustic wave (DAW) have been investigated in an electronegative dusty plasma in presence of a static magnetic field. It is found that in case of adiabatic charge variations, the nonlinear wave is governed by the Zakharov-Kuznetsov (ZK) equation which yields the usual solitary wave solution. On the other hand, in case of nonadiabatic charge variations, the dynamics is governed by the Zakharov-Kuznetsov-Burgers' (ZKB) equation which exhibits shock like structures. The results are discussed in the context of cometary plasma.
机译:在带负电的尘埃等离子体中,在存在静磁场的情况下,研究了绝热和非绝热电荷变化对小而有限振幅的非线性尘埃声波(DAW)的影响。发现在绝热电荷变化的情况下,非线性波受Zakharov-Kuznetsov(ZK)方程控制,该方程产生通常的孤立波解。另一方面,在非绝热电荷变化的情况下,动力学受Zakharov-Kuznetsov-Burgers(ZKB)方程控制,该方程表现出类似冲击的结构。在彗星血浆的背景下讨论了结果。

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