Problematic meshing of an inverted airfoil
I was trying to "mesh" a racecar's airfoil but unfortunately I found a problem. I chose ch10 airfoil. In order to simulate the behaviour of a racecar's airfoil I "inverted" its coordinates.
These coordinates are in this file:
In order to mesh it I created 3 faces (rect1, rect2 and arc).
The coordinates of the points/vertexes used (A, B,...G) are:
When I imported airfoil's geometry in Gambit I chose to import only "edges". The airfoil's geometry is represented by one edge called "edge1".
I created a face called "airfoil" starting from this "edge1".
The problem emerges when I try to subtract the face "airfoil" from face "arc" using a boolean operation (subtract).
I received the following error message:
"ERROR: ACIS error 8004:inconsistent containment of intersection curve. Restoring the geometric model to the state before the current operation (if there is a positive number of default UNDO levels)."
Here is the *.dbs file:
I would be very grateful if someone can help me.
Thanks in advance.
the problem is on edges GA EG CG: they have common vertex G with your airfoil, so:
*delete faces rect1 rect2 and ark (disable lower geometry option)
*create new face with AB AF EF DE CD BC (outer domain without splits)
*split this new surface with airfoil
*delete surface airfoil
*split new splitted surface with GA CG
*Then with CG and EG
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