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Author: Ben Mullen, Cornell University Problem Specification |
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Verification & Validation
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This tutorial is not being updated any more. We recommend that you follow this newer tutorial on fluid-structure analysis of a wind turbine blade. Thank you! |
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Refine the Mesh
Now that we have our results, it is important that we check to see that our computational simulation is accurate. One possible way of accomplishing this task is comparing to the pre-calculations, as we did in the results section. Another way to check our results is by refining the mesh further. The smaller the elements in the mesh, the more accurate our simulation will be, but the simulation will take longer. To refine the mesh, look to the outline tree and click Mesh > Body Sizing Change the element sizing to 0.125 1 (half the size of the mesh we originally tried).
The new mesh looks likenewwindow
https://confluence.cornell.edu/download/attachments/151192817/RefinedMeshLarge.png?version=1&modificationDate=1310521630000
It has twice as many elements as the original.
| Unrefined Mesh | Refined Mesh | Percent Difference |
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Number of Elements | 7763 | 15052 | 93.894 % |
Max Deformation | 0.0010432 m | 0.0010538 m | 1.016 % |
Max Normal Stress | 3.7746e5 Pa | 3.3744e5 Pa | 10.602 % |
Because there was relatively little change due to the refinement of the mesh, we have validated our results.
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Under Construction |
Go to Exercises. It has twice as many elements as the original.