论文标题
带有N体模拟的流体中的气泡动力学
Bubble dynamics in fluids with N-body simulations
论文作者
论文摘要
我们提出了一种用于流体中气泡动力学研究的新方法。依靠基于粒子的模拟，此方法是一般的，适用于常用的完美流体描述失败的情况。我们研究扩大了由自由或自我相互作用颗粒所包围的真空气泡，并量化了自我相互作用如何影响末端气泡壁速度。我们发现，对于足够强烈的自我相互作用的流体，在气泡壁周围保持局部热平衡，并且流体剖面与完美的流体描述相似。
We present a new approach to studies of bubble dynamics in fluids. Relying on particle-based simulations, this method is general and suitable for cases where the commonly used perfect fluid description fails. We study expanding true vacuum bubbles surrounded by free or self-interacting particles and quantify how self-interactions affect the terminal bubble wall velocity. We find that, for sufficiently strongly self-interacting fluids, local thermal equilibrium is maintained around the bubble wall and the fluid profile is similar to that obtained with the perfect fluid description.
