We present an experimental study on the shear‐induced migration and axial development of particles in the channel flows of non‐Brownian suspensions. The suspending fluid is Newtonian. We investigate fracturing flows with a Hele‐Shaw type scaling through building a unique channel setup and an advanced optical system. The local particle concentration profiles are measured via the refractive‐index matching technique for a wide range of bulk volume fraction, that is, . Simultaneously, the particle image velocimetry is performed to determine the velocity profile of the particle phase. We compare our experimental results with the available two‐phase continuum frameworks and show discrepancies and similarities in the fully developed and axial development of the solid volume fraction profiles. We discuss directions in which the continuum frameworks require improvements.

中文翻译：

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剪切诱导的非布朗悬架通道流中的迁移和颗粒的轴向发育

我们对非布朗悬浮液的通道流中颗粒的剪切诱导迁移和轴向发展进行了实验研究。悬浮液是牛顿型的。我们通过建立独特的通道设置和先进的光学系统，以Hele-Shaw型标度研究压裂流。局部颗粒物浓度分布是通过折射率匹配技术对大体积体积分数进行测量的，也就是说，。同时，执行颗粒图像测速以确定颗粒相的速度分布。我们将实验结果与可用的两阶段连续体框架进行了比较，并显示了固体体积分数分布图的完全开发和轴向开发中的差异和相似之处。我们讨论了连续体框架需要改进的方向。