Meshing a wind turbine blade
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Hi guys,
I am trying to validate my numerical method using NREL Phase VI blade in ANSYS FLUENT, but I am having hard times with meshing. I am using the standart meshing component of ANSYS. I just define face sizing, body sizing and infilation, I barely get 0.9 skewness having 12 M of mesh elements. I tried different sizing and methods, but still I can't increase the mesh quality. I have attached the picture of the fluid domain and other mesh sizing details. Do you have any advice? My power output results are arround %20 worse than experimental results. What should be the range of Y+ for k-w SST model? One more thing, the rotation direction of the Moving Domain inside is +z, that it true right? Thank you. |
Value of Y+ should be equal to 1.
It seems that rotation direction of the Moving Domain is right. Did you use structure mesh in computational domain? |
Thanks for the response.
Nope I used unstructured mesh. Since the blade has a complex geometry, I guess it is almost impossible to use structured mesh. Do I need to learn to use ICEM CFD or some other meshing software for meshing? It seems very difficult to get a quality mesh with ansys meshing:/ And btw, the wind turbine blade should be stationary wall and not moving wall right? I just have to rotate the moving frame? |
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I use Gambit but I am agree with you about "Since the blade has a complex geometry, I guess it is almost impossible to use structured mesh" But i had seen a few tutorial about meshing of wind turbine in Gambit. Also Did you study the following links and download them? https://www.google.com/?gws_rd=ssl#q...2FWind+turbine Above links are useful. there is a youtube link.... |
thx for the responses, it helped me.
Strangely, if I use patch independent method (using tetra mesh), skewness and orthogonal quality values get much better, but mesh looks generally awfull. So, should I still use it? |
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