[Paraview] Visualising surface

[p.p pyloth]

I am trying to visualize the flow past a sphere. I have exported my cfd solution to legacy VTK format ( cell based). I imported the same using paraview and plotted necessary streamlines but I cannot visualize the sphere surface. How do I visulise the streamline and sphere surface(together)

Can I use two data types in the same vtk file (unstructured mesh and ploydata)
Pls help



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