流体动力学回波实验中的不可逆性和自组织
Irreversibility and self-organisation in hydrodynamic echo experiments
摘要：
讨论了低雷诺数流体动力系统在外部循环驱动下的可逆-不可逆相变。我们介绍了一组没有自动组织的模型，并表明，一个尖锐的交叉之间的李雅普诺夫制度，其中任何噪声源，如热噪声，是指数放大，和扩散制度，这不再持有。在后一种情况下，粒子群被认为是协同运动的，但没有空间组织发生。
英文摘要：
We discuss the reversible-irreversible transition in low-Reynolds hydrodynamic systems driven by external cycling actuation. We introduce a set of models with no auto-organisation, and show that a sharp crossover is obtained between a Lyapunov regime in which any noise source, such as thermal noise, is amplified exponentially, and a diffusive regime where this no longer holds. In the latter regime, groups of particles are seen to move cooperatively, yet no spatial organization occurs.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
