axisymmetric boundary condition
 

We have found a bug on the definition of the axisymmetric boundary condition in 2D axisymetric swirl flow solver with fluent 6.2.16. we are tring to solve the swirling flow in a hydrocyclone by using a 2D axisymmetric approach.but we discovered that radial velocity at axis is not zero in the simulations. Do you know how it is possible to define the axisymmetric boundary condition which radial velocity should be zero in axis.