Learning Forum

[me18s031]

I am using ICEM CFD for meshing . In my geometry I want to create a non conformal mesh interface between two fluid zones so that flow passes through that interface. The interface is partially overlapping as shown :

[Rob]

Fluent automatically sets a wall for the parts of the interface surface that don't match with the other side of the interface. They'll be labelled "wall:123" or the like. The created wall is not displayed separately, and the whole interface surface remains as an interface.

[me18s031]

I wasn't aware of this. Thank you sir for the prompt reply.

[me18s031]

I ran the simulation with following boundary conditions :

The case has converged to a absolute residual of 10 power (-5). However the velocity contours at the outlet of the channels is not as expected :

Apparently no flow is entering the channels from the semi cylindrical header. However the function calculator in CFD-Post shows mass leaving the outlet and so mass conservation is satisfied:



I am not able to figure this out. Is there any issue in setting up of mesh interface.
Appreciate any help on this.
Thank you.

[Rob]

Check the fluxes in Fluent and see what that reports.

[me18s031]

Actually I had used only two nodes across the height of the channel . Hence it was reporting zero velocity in the channels. Need to refine the cells. Thank you for your support.