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Rheological tests with a Boger fluid and a rough geometry

机译：具有博格液和粗糙几何的流变测试

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In rheometry rough geometries are often used to prevent wall-slip typically encountered with heterogeneous fluids. However, the fluid does not stand still within the geometry roughness and a residual wall-slip can be often measured. The problem can be treated as the flow through a porous medium that is here investigated when the fluid is non-Newtonian. We use a Boger fluid that is a good model for the Second Order Fluids and a commercial cross-hatched plate as rough geometry. The results obtained are in good qualitative agreement with predictions available in the literature and are promising for the development of a simple procedure to use rough geometries with viscoelastic fluids.
机译：在流变学中，粗糙的几何形状通常用于防止通常遇到异质流体的壁滑。然而，流体不静止仍然在几何粗糙度内，并且可以经常测量残留的壁滑。当流体是非牛顿时，该问题可以被视为通过多孔介质的流动。我们使用博格液，这是第二阶流体的良好模型，以及商业交叉阴影板作为粗糙几何形状。获得的结果与文献中可用的预测良好的定性协议，并且很有希望开发使用粘弹性液体的粗糙几何的简单程序。

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