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arXiv 1012.2746cond-mat.soft
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抑制viscous fluid指进:分段恒定注入过程

Suppression of viscous fluid fingering: a piecewise constant-injection process

Eduardo O. Dias, Fernando Parisio, Jose A. Miranda

摘要:

在Hele-Shaw池中,将一种流体注入另一种粘度较大的流体通常会导致形成高度分支的图案。尽管这些结构丰富,但在许多实际情况下,这种复杂的形状是非常不可取的。在这封信中,我们提出了一个有效的和容易重现的方式来抑制这些不稳定性的基础上,一个简单的分段恒定泵浦协议。这导致粘性指状物的尺寸减小一个数量级。

英文摘要:

The injection of a fluid into another of larger viscosity in a Hele-Shaw cell usually results in the formation of highly branched patterns. Despite the richness of these structures, in many practical situations such convoluted shapes are quite undesirable. In this letter we propose an efficient and easily reproducible way to restrain these instabilities based on a simple piecewise constant pumping protocol. It results in a reduction in the size of the viscous fingers by one order of magnitude.

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。

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