Spontaneous growth of fluctuations in the viscous flow of a fluid past a soft interface
Spontaneous growth of fluctuations in the viscous flow of a fluid past a soft interface
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通过软界面的流体粘性流波动的自发增长
DOI：
10.1103/physrevlett.84.3310
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发表时间：
2000
影响因子：
8.6
通讯作者：
R. Muralikrishnan
中科院分区：
文献类型：
--
作者：
Vinay Kumaran;R. Muralikrishnan
在惯性效应不明显的低雷诺数范围内，研究了流过软质材料时的流致不稳定性。当基流的应变率超过某一临界值时，观察到了从层流到更复杂的流型的转变；这种转变是可重复的。将实验结果与理论预测进行了比较，发现在没有可调参数的情况下，定量结果是一致的。
The flow induced instability in the flow past a soft material is studied in the limit of low Reynolds number where inertial effects are insignificant. A transition from laminar flow to a more complicated flow profile is observed when the strain rate of the base flow increases beyond a critical value; the transition is found to be reproducible. The experimental results are compared with theoretical predictions and quantitative agreement is found with no adjustable parameters.