Anisotropic Mesh Generation
Contents
Analytic Metric Functions
Linear metric
Metric given by where h_{x} =0.1, h_{y}=0.1, h_{0} = 0.001, h_{z} = h_{0} + 2(0.1-h_{0})|z-0.6|
Surface Mesh, cross-cut and detail of the generated volume mesh. |
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Quality statistics in the metric space for generated volume mesh.94 % of the edges has length between [0.5,1.5].
For the mean ratio 96%,of the elements have quality higher that 0.7. |
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Quarter of a Cylinder
where h_{x} = min(0.002 5^a, h_{max}), h_{y} = min(0.05 · 2^{a}, h_{max}), h_{z}= h_{max}, h_{max} = 0.1, θ = arctan(x,y), a = 10 · | 0.75 - √ (x2+ y2) |
Surface Mesh, cross-cut and detail of the generated volume mesh. |
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Quality statistics in the metric space for generated volume mesh.
91 % of the edges has length between [0.5,1.5]. For the mean ratio 79% of the elements have quality higher that 0.7. |
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Solution Based Adaptation
Onera M6
30K Complexity
Surface and background meshes were acquired from UGAWG repository
Initial surface mesh acquired from [1] | Refined surface mesh using as a 30K complexity background mesh acquired from [2] |
cross cuts of the final mesh |
The final mesh (available here ) was compared against the results from the 2018 Scitech paper Unstructured Grid Adaptation and Solver Technology for Turbulent Flows
available at https://arc.aiaa.org/doi/abs/10.2514/6.2018-1103 .
50K Complexity
Same input surface but with different metric complexity :
cross cuts of the final mesh |
The background mesh is available here
The final mesh (available here )