Difference between revisions of "Anisotropic Mesh Generation"
(→30K Complexity) |
(→30K Complexity) |
||
| (5 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
| − | |||
| − | |||
| − | |||
== Analytic Metric Functions == | == Analytic Metric Functions == | ||
===Linear metric=== | ===Linear metric=== | ||
| Line 19: | Line 16: | ||
{| | {| | ||
|- | |- | ||
| − | |[[File:Cube_qcircle_edges.png|350px | + | |[[File:Cube_qcircle_edges.png|350px]] |
| − | |[[File:Cube_qcircle_qual.png|350px | + | |[[File:Cube_qcircle_qual.png|350px]] |
|- | |- | ||
!colspan="2"| Quality statistics in the metric space for generated volume mesh.94 % of the edges has length between [0.5,1.5]. | !colspan="2"| Quality statistics in the metric space for generated volume mesh.94 % of the edges has length between [0.5,1.5]. | ||
| Line 68: | Line 65: | ||
{| | {| | ||
|- | |- | ||
| − | |[[File:Onera_initial mesh.png|500px | + | |[[File:Onera_initial mesh.png|500px]] |
| − | |[[File:RefinedSurface_onera03.png|500px | + | |[[File:RefinedSurface_onera03.png|500px]] |
|- | |- | ||
| − | | 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]''' |
|- | |- | ||
| − | | [[File:Onera03_side.png|500px | + | | [[File:Onera03_side.png|500px]] |
| − | | [[File:Onera03_cross_section.png|500px | + | | [[File:Onera03_cross_section.png|500px]] |
|- | |- | ||
| − | | colspan="2" | cross cuts of the final mesh | + | | colspan="2" style="text-align: center;" | ''' cross cuts of the final mesh''' |
|} | |} | ||
| Line 86: | Line 83: | ||
{| | {| | ||
|- | |- | ||
| − | |[[File:Histogram ratio onera03.png|500px | + | |[[File:Histogram ratio onera03.png|500px]] |
| − | |[[File:Histogram qual onera03.png|500px | + | |[[File:Histogram qual onera03.png|500px]] |
|- | |- | ||
|} | |} | ||
==== 50K Complexity ==== | ==== 50K Complexity ==== | ||
| + | |||
| + | Same input surface but with different metric complexity : | ||
| + | |||
| + | {| | ||
| + | | [[File:Onera05_side.png|500px]] | ||
| + | | [[File:Onera05_cross_section.png|500px]] | ||
| + | |- | ||
| + | | colspan="2" style="text-align: center;" | ''' cross cuts of the final mesh''' | ||
| + | |} | ||
| + | |||
| + | The background mesh is available [https://github.com/UGAWG/solution-adapt-results/blob/master/onera-m6/euler-m084-a306-fun3d/onera05-metric.solb here ] | ||
| + | |||
| + | The final mesh (available [http://cs.odu.edu/crtc/CDT3D/Anisotropic/onera05_CDT3D.7z here] ) | ||
Latest 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|
|
|
|
| Surface Mesh, cross-cut and detail of the generated volume mesh. | ||
|---|---|---|
|
|
| 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. | |
|---|---|
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) |
|
|
|
| Surface Mesh, cross-cut and detail of the generated volume mesh. | ||
|---|---|---|
|
|
| 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. | |
|---|---|
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 )
