[bharat.cmeri]

Hello Friends,

I am having an annular cylindrical type domain and thus I am modeling it as a rectangular domain (by taking a cross-section along axis) while defining it as axisymmetric. Also I have aligned the axial direction along x-axis. But maybe as it does not have any axis boundary condition (as part of domain because axis is at an offset distance) , the uds eqation is showing divergence detected in AMG solver.

Kindly suggest some ways to remove this error.

PS: I am using 2nd order approximation for uds discretzation, standard for pressure discretization, and again 2nd order approximation for momentum eqn.
I have attached a snapshot of the grid with reference to global coordinates.