Using molecular dynamical simulations, compressional shocks in two-dimensional (2D) dusty plasmas are quantitatively investigated under various conditions. A universal relationship between the thermal and the drift velocities after shocks is discovered in 2D Yukawa systems. Using the equation of state of 2D Yukawa liquids, and the obtained pressure from the Rankine-Hugoniot relation, an analytical relation between the thermal and the drift velocities is derived, which well agrees with the discovered universal relationship for various conditions.

中文翻译：

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二维Yukawa系统中压缩冲击的普遍关系。

使用分子动力学模拟，在各种条件下对二维（2D）尘土等离子体中的压缩冲击进行了定量研究。在二维Yukawa系统中发现了冲击后的热速度和漂移速度之间的普遍关系。利用二维Yukawa液体的状态方程，以及从Rankine-Hugoniot关系获得的压力，得出了热速度和漂移速度之间的解析关系，这与在各种条件下发现的通用关系非常吻合。