Blunt Trailing Edge Mesh
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Hi,
Is there any good literature on meshing strategies for blunt trailing edge airfoils? I have only recently become involved with CFD and after my first Fluent run I am not convinced that my current trailing edge mesh is doing a good job of resolving the flow conditions correctly. I have attached a picture of my mesh at the TE as made in ICEM. |
You can do better mesh by:
1. Use orgrid around trailing edge 2. Edge mesh parameters. |
2 Attachment(s)
Ah! I get much better results with the O-grid.
Attached is my new mesh and results at the TE. I could be wrong but that recirculation looks good. |
In the wake region you can make more dense mesh. Do these steps
1. Match mesh between two blocks i.e. o grid and the downstream mesh in wake region by match edge mesh 2. Split wake block at one chord length downstream and pack more nodes there. Step 1 should be repeated if you see the large jumps there. Or do the step 1 after step two. Moreover the mesh in two blocks (after split) in wake region should also be smooth. Again use match edge mesh parameters command. |
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Yes. I wanted to say you should not have the large jumps in cell size :)
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Meshing tutorial of blunt trailing edge airfoil
Hey,
I just started with my project on flow analysis over a blunt trailing edge. The meshing is been done using ICEM CFD and is solved in ANSYS CFX. I have no prior experience with either of them. Kindly suggest/share if you know any tutorials for meshing of blunt trailing edge airfoil and cfx solver for similar kind of problem. Thanks in advance ! |
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Otherwise the ansys tutorials available on the customer portal should have airfoil tutorials for CFX (I use Fluent). Remember to go back to fundamentals always. |
How did you do it?
Hey, I just started learning ICEM CFD and I wonder if you can kindly explain the way you used the o-grid around the trailing edge?
Best regards |
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