Problematic meshing of an inverted airfoil
Hello.
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: http://www.megaupload.com/?d=9PCTD41O In order to mesh it I created 3 faces (rect1, rect2 and arc). The coordinates of the points/vertexes used (A, B,...G) are: http://imageshack.us/photo/my-images...ordinates.jpg/ 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: http://www.megaupload.com/?d=TMMWE6J5 I would be very grateful if someone can help me. Thanks in advance. Regards, Susan. |
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 That's it |
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Regards, Susan |
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