论文标题
将可调性纳入通用缩放框架以进行剪切增厚
Incorporating tunability into a universal scaling framework for shear thickening
论文作者
论文摘要
最近，我们提出了一个通用缩放框架，该框架表明，密集悬浮液中的剪切增厚受两个关键点之间的交叉控制：一个与无摩擦的各向同性干扰有关，第二个与摩擦剪切干扰相对应。在这里，我们表明，流向流的正交扰动，一种调谐剪切增厚的有效方法，也可以折叠到这个通用的缩放框架中。具体而言，我们表明，可以通过简单地将缩放变量更改以包含一个随着归一化的OSP应变率降低的乘法项来加入正交剪切扰动（OSP）的效果。这些结果证明了我们的缩放框架的广泛适用性，并说明了如何对其进行修改以合并其他复杂的流场。
Recently, we proposed a universal scaling framework that shows shear thickening in dense suspensions is governed by the crossover between two critical points: one associated with frictionless isotropic jamming and a second corresponding to frictional shear jamming. Here, we show that orthogonal perturbations to the flows, an effective method for tuning shear thickening, can also be folded into this universal scaling framework. Specifically, we show that the effect of adding in orthogonal shear perturbations (OSP) can be incorporated by simply altering the scaling variable to include a multiplicative term that decreases with the normalized OSP strain rate. These results demonstrate the broad applicability of our scaling framework, and illustrate how it can be modified to incorporate other complex flow fields.
