论文标题
复杂多孔培养基中产量压力流体的第一个开放通道
The first open channel for a yield-stress fluid in complex porous media
论文作者
论文摘要
复杂多孔介质中产量压力流体的第一个流化路径的预测是一项具有挑战性但一项重要的任务，是了解几个工业和生物学过程中流体流的基础知识。在大多数情况下，打开第一条路径的条件是通过实验或昂贵的计算来知道的。在这里，我们提出了一个简单的网络模型，以预测复杂多孔介质中产量压力流体的第一个开放通道。对于由非重叠磁盘制成的多孔介质，我们发现打开给定屈服应力的第一个通道所需的压降取决于系统的宏观长度的相对磁盘尺寸和包装分数。我们还报告了第一个开放路径的弧长的统计信息。最后，我们讨论了结果对在储能应用中使用的多孔介质设计的含义。
The prediction of the first fluidized path of a yield-stress fluid in complex porous media is a challenging yet an important task to understand the fundamentals of fluid flow in several industrial and biological processes. In most cases, the conditions that open this first path are known either through experiments or expensive computations. Here, we present a simple network model to predict the first open channel for a yield-stress fluid in a complex porous medium. For porous media made of non-overlapping disks, we find that the pressure drop required to open the first channel for given yield stress depends on both the relative disks size to the macroscopic length of the system and the packing fraction. We also report the statistics on the arc-length of the first open path. Finally, we discuss the implication of our results on the design of porous media used in energy storage applications.
