Dilatancy in liquid foams

Dilatancy in liquid foams
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液体泡沫的膨胀性

DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
S. Hutzler
S. Hutzler
中科院分区:
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文献类型:
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作者:
D. Weaire;S. Hutzler

文献摘要

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它示出的粘性(由于剪切的液体部分的变化)可以是泡沫中的一个大的影响。理论和模拟的标准理想化模型的二维液体泡沫被发现是在良好的协议。在恒定渗透压下静态剪切的最大效应的估计给出了大约1.5%的液体分数的绝对增加,在湿和干极限之间的一半。同样的理论,它使用建立的依赖性的剪切rnodulus液体分数,预测定性和定量相似的行为在三维空间。
It is shown that dilatancy (a change in liquid fraction due to shear) can be a large effect in foams. Theory and simulations for the standard idealized model of a two-dimensional liquid foam are found to be in good agreement. The estimate of the maximum effect of static shear at constant osmotic pressure gives an absolute increase in liquid fraction of roughly 1.5%, halfway between the wet and the dry limits. The same theory, which uses the established dependence of shear rnodulus on liquid fraction, predicts a qualitatively and quantitatively similar behaviour in three dimensions.