The excitation of low frequency dust acoustic (or dust density) waves in a dusty plasma can be driven by the flow of ions relative to dust. We consider the nonlinear development of the ion–dust streaming instability in a highly collisional plasma, where the ion and dust collision frequencies are a significant fraction of their corresponding plasma frequencies. This collisional parameter regime may be relevant to dusty plasma experiments under microgravity or ground-based conditions with high gas pressure. One-dimensional particle-in-cell simulations are presented, which take into account collisions of ions and dust with neutrals, and a background electric field that drives the ion flow. Ion flow speeds of the order of a few times thermal are considered. Waveforms of the dust density are found to have broad troughs and sharp crests in the nonlinear phase. The results are compared with the nonlinear development of the ion–dust streaming instability in a plasma with low collisionality.

中文翻译：

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高碰撞等离子体中离子尘流不稳定性的模拟

尘埃等离子体中低频尘埃声波（或尘埃密度）的激发可以由相对于尘埃的离子流驱动。我们考虑了高度碰撞等离子体中离子-尘埃流不稳定性的非线性发展，其中离子和尘埃碰撞频率是其相应等离子体频率的很大一部分。这种碰撞参数状态可能与微重力或高气压地面条件下的尘埃等离子体实验有关。提出了一维粒子单元模拟，其中考虑了离子和尘埃与中性粒子的碰撞，以及驱动离子流的背景电场。考虑了几倍热的离子流速度。发现尘埃密度的波形在非线性阶段具有宽阔的波谷和尖锐的波峰。将结果与具有低碰撞性的等离子体中离子-尘埃流不稳定性的非线性发展进行了比较。