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  • Wind Turbine Blade FSI (Part 1) - Mesh

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  1. Insert Match Control
    1. Select the two trapezoid faces for the high and low geometry selection
    2. Choose axis of rotation to be global coordinate
    3. Match control is for the nodes to match up for the periodic sides.
  2. Insert face sizing
    1. Use the name selection, blade surface.
    2. Input sizing of 0.3m.
    3. Behavior should be hard.
  3. Insert local inflation around the blade
    1. Geometry is the whole body
    2. For boundary, select named selection and choose the blade (click enter)
    3. Keep default settings for the rest
  4. Add a sphere of influence
    1. First, create a new coordinate system. 
      1. Define it by named selections and choose the blade surface.
    2. Insert body sizing
    3. Geometry, the whole body
    4. Type: sphere of influence
    5. Sphere center: Coordinate System
    6. Radius: 30m
    7. Element size: 2m
  5. Click Generate
Note
titleANSYS 19.1 Users:

If your mesh fails when you insert a sphere of influence, skip this step. Instead, change the growth rate to 1.15 from the default of 1.2. To do this, highlight Mesh in the tree, then look under sizing.

 

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Mesh Metrics

We now show you how to judge the quality of your mesh. This is an extremely important step because a bad mesh can lead to bad results!

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