Visualizing the Dynamics of the Onset of Turbulence
Visualizing the Dynamics of the Onset of Turbulence
复制标题
湍流发生的动力学可视化
作者：
F. Busse
例如，当打开水龙头并且最初的规则流动变为混乱、不规则流动时，可以观察到流体流动中湍流的开始。对这一转变的实验研究可以追溯到 19 世纪，但随着
布塞
在他的观点中解释说，理论进展的出现速度较慢，而且转型动态的许多方面仍然未知。他强调了该报告
霍夫
等人在精心准备的管流实验中观察到了预测的动力学模式。尽管这些模式不稳定，但它们确实会短暂发生，并且可以通过复杂的可视化技术捕获。
The onset of turbulence in fluid flow is observed when, for example, a faucet is opened and the initial regular flow changes into chaotic, irregular flow. Experimental studies of this transition go back to the 19th century, but as
Busse
explains in his Perspective, theoretical advances have been slower to emerge, and many aspects of the dynamics of the transition remain unknown. He highlights the report by
Hof
et al ., who have observed the predicted dynamical patterns in carefully prepared pipe flow experiments. Although these patterns are unstable, they do occur fleetingly and can be captured with sophisticated visualization techniques.