CFX solver shows error
 

Hey m very new to CFX and I got this error-------

| ERROR #002100048 has occurred in subroutine SU_BNEXT. |
| Message: |
| All vertices for a fluid domain lie on boundaries. This is |
| considered to be a fatal error because control volume gradients |
| cannot be calculated, leading to serious discretization error. |
| |
| A common cause for this error is a mesh which is only one |
| element thick, without symmetry or 1:1 periodicity on the lateral |
| boundaries. If you have this situation, and the domain is |
| two-dimensional, please change the lateral boundary conditions |
| to symmetry or 1:1 periodicity. Alternatively, for |
| three-dimensional simulations, please ensure that your mesh |
| has at least two elements across. |
| |
| Execution is terminating. This error message can be bypassed by |
| setting the expert parameter 'boundary vertex check = f', but |
| be aware that doing so may lead to sigificant solution error. |
+--------------------------------------------------------------------+


What exactly is the problem and how can I solve it....

The error message is very clear - a domain has no internal nodes. It has to have at least some internal nodes.

Ok........ so reducing element size or type should help.....

Thanx a lot ...

More specifically, making sure your geometry has internal nodes. You will probably get that with finer mesh, but you should check your next mesh to ensure it does have internal nodes.

ok thanx a lot :)