In this article, the effect of attraction between particles on a 2-D complex plasma system by applying a local directional flow is investigated by Langevin molecular dynamics simulation. The structures and dynamics of the system are studied. The steady-state particle distribution and Voronoi diagram are used to represent the system structural property. The particle speed statistical distribution, mean square displacement and trajectories are used to investigate the system dynamical property. The particles’ kinetic energy evolves as the time under different interparticle attractions are compared. The trajectories of individual particles by initially locating inside or outside the flow are given to show the detailed influence of attraction on different particles at different locations. These results indicate that the system properties can be influenced by different interparticle attractions by considering a directional flow.

中文翻译：

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颗粒间吸引力对具有定向流的复杂血浆的影响

在本文中，通过Langevin分子动力学模拟研究了通过施加局部定向流而对二维复杂等离子体系统中的粒子之间的吸引力的影响。研究了系统的结构和动力学。稳态粒子分布和Voronoi图用于表示系统的结构特性。利用粒子速度统计分布，均方位移和轨迹来研究系统动力学特性。比较不同粒子间引力下粒子的动能随时间变化。通过最初位于流的内部或外部来给出单个粒子的轨迹，以显示吸引力在不同位置对不同粒子的详细影响。