ANZIAM J.
44 (2002), 181191  
A note on withdrawal from a fluid of finite depth through a point sink
 
 
Abstract  
The problem of withdrawal through a point sink
of water from a fluid of finite depth with a free
surface is considered. Assuming the flow to be
axisymmetric, it is found that there is a maximum
Froude number at which such flows can exist.
This maximum corresponds to the formation of a
secondary stagnation ring on the free surface.
This result extends earlier work on this problem.
Comparison is made with a small Froude number
solution and past experimental results.
 
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