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April 30, 2010, 11:15 |
Airfoil in ICEM
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#1 |
New Member
Jonas Schulze
Join Date: Apr 2010
Location: Darmstadt, Germany
Posts: 5
Rep Power: 16 |
Hi
I'm trying to model a geometry and a mesh for an airfoil in ICEM, and regarding this I have two questions. First one: I import the airfoil via the "formatted point data". Now I want to make three curves out of the points, the upper half, the down half and the trailing edge of the airfoil. I want to make all curves with the "arc through 3 points", because I think they are the smoothest curves, and then summarize alle the little curves to the three final ones. However, when I try to summarize them, I always get an error that tells something like "At location xxxx is a gap of 0.0000000 with a tolerance of 0.000000, curve not created" (or similar). What does that mean and how can I get the smooth curves I want? Second question: When I use the "Curve through points" to make my airfoilcurve, I get an angled curve, but with this I tried to move on. I created an rectangular 3D control volume around the airfoil with the faces INLET, OUTLET, TOP, BOTTOM, FRONT an BACK. The airfoil itself is made of three faces and called WALL. Now I create a 2D planar block on BACK (but in the part SOLID) and do all my blocking. After this I want to make the mesh 3D and write an output file to ANSYS CFX. But how do I make the mesh properly 3D so that I can define all boundary conditions in ANSYS? I tried "2D to 3D blocking" in the part SOLID and extruding the 2D mesh, but later in ANSYS, when I'm defining boundary conditions, I can't choose all the faces I created in ICEM (usually, TOP, BOTTOM, INLET und OUTLET are missing). Thank you very much for your answers! |
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