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[ANSYS Meshing] refining the leading edge of a wind turbine blade

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Old   September 9, 2016, 10:50
Default refining the leading edge of a wind turbine blade
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I am using the octree volume mesher in ICEM to mesh a 3-blade wind turbine. I imported the STL file but I cant seem to split the facets but that is not the main issue. The main problem is the leading edge (see the pics attached). Is there a way to refine the leading edge so that i dont get 'bumpy' meshes in that region?
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File Type: jpg PIC1.jpg (115.6 KB, 41 views)
File Type: jpg PIC2.jpg (40.3 KB, 29 views)
File Type: jpg PIC3.jpg (59.9 KB, 28 views)
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Old   September 9, 2016, 17:35
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If the geometry has a curve (or if you build one) along the leading edge, you can use Mesh --> Curve Mesh Set Up to define the sizing of the cells growing off of the leading edge.

I also noticed that your trailing edge has little nicks in it. I would also refine the trailing edge cells and if you still have those nicks, then maybe play around with a lower value for your Edge Criterion (one of the options when you set up your octree volume mesh).
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Old   May 9, 2018, 19:35
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Dear all,

I was searching my problem in the group and I found this post which had exactly the same issue. The only problem is that I am using ANSYS Meshing and the proposed solution is for ICEM.

I have been looking around for a long time (I should say that I am a beginner) and couldn't find a solution yet.

I have changed the curvature normal angle, created a new surface to refine it more, adding edges but nothing has worked so far... I have also other parts in the CAD which are curved but I didn't have problem on those regions.

So I am not sure if there is a way to fix it or I am missing an important parameter like in the ICEM case.

I am also adding a picture of the surface mesh.

I am hoping that you might help me.

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File Type: jpg leadingEdge.jpg (77.8 KB, 22 views)
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