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Source

Source flow:

Polar coordinates :

Polar velocity components:

Mass flux out of the source:

and m is the volumetric flow rate of the source.

Exercise:

Since and the divergence theorem states that

what is the divergence of the velocity?

Source at a point (x,y)=(1,2):

You should now be able to do 18.9


Next: Vortex Up: Logarithmic Previous: Logarithmic