Difference between revisions of "Anisotropic Mesh Generation"
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| − | |[[File:Onera_initial mesh.png|500px | + | |[[File:Onera_initial mesh.png|500px]] |
| − | |[[File:RefinedSurface_onera03.png|500px | + | |[[File:RefinedSurface_onera03.png|500px] |
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| '''Initial surface mesh acquired from [https://github.com/UGAWG/solution-adapt-cases/blob/master/onera-m6/initial-grid/onera_curvAdapt.meshb]''' | | '''Initial surface mesh acquired from [https://github.com/UGAWG/solution-adapt-cases/blob/master/onera-m6/initial-grid/onera_curvAdapt.meshb]''' | ||
| '''Refined surface mesh using as a 30K complexity background mesh acquired from [https://github.com/UGAWG/solution-adapt-results/blob/master/onera-m6/sa-m084-a306-fun3d/onera03-metric.solb]''' | | '''Refined surface mesh using as a 30K complexity background mesh acquired from [https://github.com/UGAWG/solution-adapt-results/blob/master/onera-m6/sa-m084-a306-fun3d/onera03-metric.solb]''' | ||
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| − | | [[File:Onera03_side.png|500px | + | | [[File:Onera03_side.png|500px]] |
| − | | [[File:Onera03_cross_section.png|500px | + | | [[File:Onera03_cross_section.png|500px]] |
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| colspan="2" style="text-align: center;" | ''' cross cuts of the final mesh''' | | colspan="2" style="text-align: center;" | ''' cross cuts of the final mesh''' | ||
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| − | |[[File:Histogram ratio onera03.png|500px | + | |[[File:Histogram ratio onera03.png|500px]] |
| − | |[[File:Histogram qual onera03.png|500px | + | |[[File:Histogram qual onera03.png|500px]] |
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Revision as of 14:56, 13 April 2018
Contents
Analytic Metric Functions
Linear metric
Metric given by 
where hx =0.1, hy=0.1, h0 = 0.001, hz = h0 + 2(0.1-h0)|z-0.6|
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| 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
Metric given by 
where hx = min(0.002 5^a, hmax), hy = min(0.05 · 2a, hmax), hz= hmax, hmax = 0.1, θ = arctan(x,y), a = 10 · | 0.75 - √ (x2+ y2) |
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| 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
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[[File:RefinedSurface_onera03.png|500px] |
| Initial surface mesh acquired from [1] | Refined surface mesh using as a 30K complexity background mesh acquired from [2] |
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| 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 .
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50K Complexity
Same input surface but with different metric complexity :
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| cross cuts of the final mesh | |
The background mesh is available here
The final mesh (available here )
