The images you previous posted for the flow field don't have a scale so I have no idea what speed the colours represent.Â
The image from today has a acceleration, but thats in part due to the domain restriction, and as a result looks sensible.Â
There's an option (I think contour) for displaying orphan cells, check what else there is. What you're checked is where data is passed from the background to overset mesh. If there's a problem, or poor data convergence it could explain the odd contours.Â
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