Question: Does the velocity field v r = 4 ( 1 - 1 r 2 ) c o s v = - 4 ( 1 +

Does the velocity field
vr=4(1-1r2)cos
v=-4(1+1r2)sin
vz=0
represent a possible incompressible flow?
Does the velocity field v r = 4 ( 1 - 1 r 2 ) c o

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