Ziereip and Sawatzki 



REPLY TO DISCUSSION 



J. Zierep 



Univevsitdt Karlsruhe 

 Karlsruhe 3 West Germany 



The general condition for the existence of closed streamlines , 

 given by Batchelor in the cited reference, can be applied to the 

 present case of a flow with rotational symmetry. We obtained infor- 

 mation about the velocity distribution that has been confirmed by our 

 analytical analysis, following a different path. 



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