Does a moving Submarine Create a Toroidal Vortex?

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Hornbein
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Today I learned how easy it is to create and visualize toroidal vortices in a swimming pool. I bet this could be done in a bathtub.



Do moving submarines create a big toroidal vortex around themselves?
 
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Hornbein said:
Do moving submarines create a big toroidal vortex around themselves?
If you design them badly.
 
A.T. said:
If you design them badly.

Care to supply any detail or a reference?