Fluid Flow around a Corner

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This Demonstration illustrates the effect that corners in flow channels have on the two-dimensional, irrotational flow of an inviscid fluid. When the corner angle is less than 180°, a stagnation region with low flow speeds forms in the corner. When the corner angle is greater than 180°, a region of high flow velocity forms at the tip of the corner. When the corner angle is exactly 180°, the flow is parallel to the

x

axis and moves from left to right at a constant speed. Warm and cold colors correspond to regions of high and low fluid speeds as indicated by the legend shown to the right. The flow streamlines are indicated by black arrows and boundary regions are shown in gray.