Unwanted node creation across blocks
 

Hi All,

I'm having issues with node numbers created under pre-mesh params being automatically copied to adjacent blocks even with 'copy to parallel edges' turned off. Specifically I have a 2d airfoil and would like to solely increase the mesh density on the suction side. However, when increasing the mesh density above the airfoil the mesh density in the blocks below the airfoil is also increased (or decreased).

Is this a limitation within ICEM with the structured cells needing to link node to node to adjacent cells? Or is there a method to delete the block within the airfoil such that the cells terminate and ICEM doesn't need to link them to the cells below the airfoil?

I have attached the diagram of my mesh in an attempt to more clearly explain my problem.

Thanks,

Andrew

Yes you can delete unwanted blocks. Blocking -> Delete block

Hi Antanas,

Yes I can delete the block within the airfoil but the link between the blocks above and below the airfoil still exists, i.e nodes changes still automatically occur below the airfoil if changes to the blocks above the airfoil are made.

Cheers,

Andrew

I found the solution to my problem was to permanently delete the block within my airfoil. From the Ansys ICEM CFD Tutorial Manual,

"Deleting blocks with Delete permanently enabled will disconnect blocks in the VORFN region, allowing different nodes count to be set on edges across this deleted block. But it will also cause VORFN to be rebuilt and a recalculation of the indices on all vertices"

Andrew