A computational domain around a 2D airfoil is considered.
A structural mesh with associated block edges is generated.
The pressure and suction sides of the airfoil are desired to be separated.
Before performing the "Convert to Unstruct Mesh" action, everything looks fine: The two parts and their boundary conditions are distinct.
The problem is: once the mesh is converted into Unstruct Mesh to create the *.uns file, both sides of the airfoil are merged, and only the suction-side BC appears in FLUENT containing the both BCs; while the pressure-side BC disappears and the two sides of the airfoil are not individually selectable.
So, what's the problem in ICEM?
Best Regards,
E. B.
I've found the solution.
The problem was from associating the block edges.
For a typical airfoil section, of which the trailing edge is not blunt, there must be at least three blocks to create a structural mesh: pressure and suction-sides and also the leading edge.
Once the edge of the block containing the leading edge is associated with both the pressure and suction-side curves, ICEM will automatically merge both the curves of the airfoil.
The solution is to split the block related to the leading edge and then, re-associate the edge with corresponding curves. Then, it would result in two correct separate wall-BCs.
Hopefully, it would help researchers in the future.
Tnx @Syed Mughees Ali
But it seems you didnt read the whole text...i've already mentioned the same solution :D
BTW, its not a problem with fluent; that IS from ICEM itself...once the mesh would be converted into "Unstruct mesh", the boundaries merge, prior to transfering to Fluent
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