Isotropic Mesh Generation - Revision history

Nikos at 10:22, 10 May 2018

2018-05-10T10:22:34Z

Ctsolakis: add links to volume meshes

2018-03-29T17:14:28Z

add links to volume meshes

Ctsolakis: resize histogram

2018-03-29T07:41:47Z

resize histogram

Ctsolakis: resize images

2018-03-29T07:14:21Z

resize images

Ctsolakis: add links and improve descriptions

2018-03-29T07:07:22Z

add links and improve descriptions

Ctsolakis: reorganize sphere images

2018-03-29T06:55:59Z

reorganize sphere images

Kgarner: /* Refinement of DLR-F6 Airbus type aircraft */

2018-03-28T12:57:03Z

‎Refinement of DLR-F6 Airbus type aircraft

Kgarner: /* Refinement of Nacelle Engine, Rocket, and Launch Vehicle with Two Boosters (lv2b) */

2018-03-28T12:55:46Z

‎Refinement of Nacelle Engine, Rocket, and Launch Vehicle with Two Boosters (lv2b)

Ctsolakis: /* Refinement of DLR-F6 Airbus type aircraft */

2018-03-28T09:50:05Z

‎Refinement of DLR-F6 Airbus type aircraft

Ctsolakis: create sections for easier navigation

2018-03-28T04:47:11Z

create sections for easier navigation

← Older revision		Revision as of 10:22, 10 May 2018
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−
−	~~== Sphere ==~~
−
−	~~<div><ul>~~
−	~~<li style="display: inline-block;"> [[File: sphere-eps-converted-to.png\|thumb\|none\|300px\|'''(a) Input Surface''']] </li>~~
−	~~<li style="display: inline-block;"> [[File: sphere_cdfm0-eps-converted-to.png\|thumb\|none\|300px\|'''(b) cdfm: 0; #tets: 57K''']] </li>~~
−	~~<li style="display: inline-block;"> [[File: sphere_cdfm0_2-eps-converted-to.png\|thumb\|none\|300px\|'''(c) cdfm: 0.2; #tets: 58K''']] </li>~~
−	~~</ul></div>~~
−
−	~~<div><ul>~~
−	~~<li style="display: inline-block;"> [[File: sphere_cdfm0_6-eps-converted-to.png\|thumb\|none\|300px\|'''(d) cdfm: 0.6; #tets: 129K''']] </li>~~
−	~~<li style="display: inline-block;"> [[File: sphere_cdfm0_8-eps-converted-to_s.png\|thumb\|none\|300px\|'''(e) cdfm: 0.8; #tets: 854K''']] </li>~~
−	~~<li style="display: inline-block;"> [[File: sphere_cdfm0_9-eps-converted-to.png\|thumb\|none\|300px\|'''(f) cdfm: 0.9; #tets: 7.68M''']] </li>~~
−	~~</ul></div>~~
−
−	~~Cuts of tetrahedral grids of a sphere generated for varied cdfm ∈ [0, 1]. Blue~~
−	~~corresponds to larger values of the distribution function. Red corresponds to smaller values<br>~~
−	~~of the distribution function.~~
−
−	~~<div><ul>~~
−	~~<li style="display: inline-block;"> [[File: sphere_histogram.png\|thumb\|none\|800px]] </li>~~
−	~~</ul></div>~~
−
−	~~Element angle distribution (in 5-deg increments) of grids of sphere, for varied~~
−	~~cdfm.<br> The dihedral angle extrema and the element count are reported for each grid.~~

	== Two Blades with Merging Wakes and a Symmetry Plane ==		== Two Blades with Merging Wakes and a Symmetry Plane ==

@@ Line 138: / Line 138: @@
 The resulting meshes generated by CDT3D and AFLR are available below.<br>
-[web_address Nacelle - CDT3D - 1 Core]
+[http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/VolumeMesh/nacelle_engine_ic_extended_boundary_CDT3D_opt_12T.vtk.7z Nacelle - CDT3D - 12 Cores]
-[web_address Nacelle - CDT3D - 12 Cores]
+[http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/VolumeMesh/nacelle_engine_ic_extended_boundary_AFLR_opt.vtk.7z Nacelle - AFLR  - 1 Core]
-[web_address Rocket - CDT3D - 1 Core]
+[http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/VolumeMesh/rocket_extended_CDT3D_opt_12T.vtk.7z Rocket - CDT3D - 12 Cores]
-[web_address Rocket - CDT3D - 12 Cores]
+[http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/VolumeMesh/rocket_extended_AFLR_opt.vtk.7z Rocket - AFLR - 1 Core]
-[web_address Lv2b - CDT3D - 1 Core]
+[http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/VolumeMesh/lv2b_CDT3D_opt_12T.vtk.7z Lv2b - CDT3D - 12 Cores]
-[web_address Lv2b - CDT3D - 12 Cores]
+[http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/VolumeMesh/lv2b_AFLR_opt_vtk.7z Lv2b - AFLR - 1 Core]
 <br><br><br><br>

@@ Line 19: / Line 19: @@
 <div><ul>
-<li style="display: inline-block;"> [[File: sphere_histogram.png|thumb|none|2000px]] </li>
+<li style="display: inline-block;"> [[File: sphere_histogram.png|thumb|none|800px]] </li>
 </ul></div>

@@ Line 152: / Line 152: @@
 <div><ul>
-<li style="display: inline-block;"> [[File: nacelleCDT3D.png|thumb|none|750px|''(a) CDT3D: 42.85 M tetrahedra'']] </li>
+<li style="display: inline-block;"> [[File: nacelleCDT3D.png|thumb|none|650px|''(a) CDT3D: 42.85 M tetrahedra'']] </li>
-<li style="display: inline-block;"> [[File: nacelleAFLR.png|thumb|none|750px|''(b) AFLR: 39.64 M tetrahedra'']] </li>
+<li style="display: inline-block;"> [[File: nacelleAFLR.png|thumb|none|650px|''(b) AFLR: 39.64 M tetrahedra'']] </li>
 </ul></div>

@@ Line 63: / Line 63: @@
 </ul></div>
-:Surface grid of an aircraft nacelle with engine inside a section of wind tunnel. Download [web_address here].
+:Surface grid of an aircraft nacelle with engine inside a section of wind tunnel. [http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/InputSurface/nacelle_engine_ic_extended_boundary.stl.7z Download ]
-:<nowiki>#</nowiki>points: 27184; #triangles: 54360
+:<nowiki>#</nowiki>Points: 27184; #Triangles: 54360
 <br><br><br>
@@ Line 72: / Line 72: @@
 </ul></div>
-:Surface grid of a rocket with engine, nozzle and transparent internal data surfaces inside flow field. Download [web_address here].
+:Surface grid of a rocket with engine, nozzle and transparent internal data surfaces inside flow field. [http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/InputSurface/rocket_extended.stl.7z Download].
-:<nowiki>#</nowiki>points: 20228; #triangles: 40448
+:<nowiki>#</nowiki>Points: 20228; #Triangles: 40448
 <br><br><br>
@@ Line 81: / Line 81: @@
 </ul></div>
-:Surface grid of a launch vehicle with solid boosters inside flow field (Lv2b). Download [web_address here].
+:Surface grid of a launch vehicle with solid boosters inside flow field (Lv2b). [http://cs.odu.edu/crtc/PDR/meshes/IsotropicMeshGeneration/InputSurface/lv2b.stl.7z Download].
-:<nowiki>#</nowiki>points: 42020; #triangles: 84024
+:<nowiki>#</nowiki>Points: 42020; #Triangles: 84024
 <br><br><br>

@@ Line 3: / Line 3: @@
 <div><ul>
-<li style="display: inline-block;"> [[File: sphere-eps-converted-to.png|thumb|none|350px|'''(a) Input Surface''']] </li>
+<li style="display: inline-block;"> [[File: sphere-eps-converted-to.png|thumb|none|300px|'''(a) Input Surface''']] </li>
-<li style="display: inline-block;"> [[File: sphere_cdfm0-eps-converted-to.png|thumb|none|350px|'''(b) cdfm: 0; #tets: 57K''']] </li>
+<li style="display: inline-block;"> [[File: sphere_cdfm0-eps-converted-to.png|thumb|none|300px|'''(b) cdfm: 0; #tets: 57K''']] </li>
 </ul></div>
 <div><ul>
-<li style="display: inline-block;"> [[File: sphere_cdfm0_2-eps-converted-to.png|thumb|none|350px|'''(c) cdfm: 0.2; #tets: 58K''']] </li>
+<li style="display: inline-block;"> [[File: sphere_cdfm0_6-eps-converted-to.png|thumb|none|300px|'''(d) cdfm: 0.6; #tets: 129K''']] </li>
-<li style="display: inline-block;"> [[File: sphere_cdfm0_6-eps-converted-to.png|thumb|none|350px|'''(d) cdfm: 0.6; #tets: 129K''']] </li>
+<li style="display: inline-block;"> [[File: sphere_cdfm0_8-eps-converted-to_s.png|thumb|none|300px|'''(e) cdfm: 0.8; #tets: 854K''']] </li>
-</ul></div>
+<li style="display: inline-block;"> [[File: sphere_cdfm0_9-eps-converted-to.png|thumb|none|300px|'''(f) cdfm: 0.9; #tets: 7.68M''']] </li>
 </ul></div>

@@ Line 229: / Line 229: @@
 </ul></div>
-:Surface grid of a DLR-F6 Airbus type aircraft with anisotropic boundary layers on a symmetry plane;
+:Surface grid of a DLR-F6 Airbus type aircraft with anisotropic boundary layers on a symmetry plane; Download [web_address here]
 :<nowiki>#</nowiki>points: 1006144; #triangles: 2012288
 <br><br><br>

@@ Line 230: / Line 230: @@
 |+ Performance results on parallel refinement of grid of a flow domain around a DLR-F6 Airbus aircraft. Parameters: cdfn : 0.8; cdfm : 0.5; mrecm : 2; mrec4 : 1; nbuckets : 15 · nthreads; frbtransf : 0.4; cbtransf : 1.0; nqual : 0; sortp : 1 activates element sorting. The included sorting time is reported in parenthesis. The sliver elements have a dihedral angle smaller than 2◦ or larger than 178◦. #Iter is the number of grid generation passes. The experiments performed on a DELL workstation with Linux Red Hat Enterprise, 24 hardware cores Intel(R) Xeon(R) CPU E5-2697v2@2.70 GHz, and 757 GB RAM. Hyper-Threading is enabled when nthreads > 24.
 |-
-! scope="col" |  !! colspan=2 | nthreads !! colspan=2 | #Tets<br>(Bi) !! colspan=2 | %Slivers<br>(w/o improv.)<br>(x10<sup>-2</sup>) !! colspan=2 | #Iter !! colspan=2 | Recon./Iter<br>(min) !! colspan=2 | Refinement<br>(hours) !! colspan=2 | Recon./Iter<br>(Speedup) !! colspan=2 | Refinement<br>(Speedup)
+! scope="col" |  !! colspan=2 | nthreads !! colspan=2 | #Tets<br>(10<sup>9</sup>) !! colspan=2 | %Slivers<br>(w/o improv.)<br>(x10<sup>-2</sup>) !! colspan=2 | #Iter !! colspan=2 | Recon./Iter<br>(min) !! colspan=2 | Refinement<br>(hours) !! colspan=2 | Recon./Iter<br>(Speedup) !! colspan=2 | Refinement<br>(Speedup)
 |-
 !  rowspan=1 |

@@ Line 58: / Line 58: @@
 == Refinement of Nacelle Engine, Rocket, and Launch Vehicle with Two Boosters (lv2b) ==
 <div><ul>
 <li style="display: inline-block;"> [[File: nacelle6.png|thumb|none|450px]] </li>
@@ Line 86: / Line 88: @@
 <br><br><br>
 {| class="wikitable" style="text-align:center;"
 |+ Parameters for unstructured grid generation. Additional parameters only for CDT3D: nthreads : 12 (parallel); nthreads : 1 (sequential); nbuckets : 240; frbtransf : 0.3; cbtransf : 1.0. Additional parameters only for AFLR: mrecrbf : 0.
@@ Line 108: / Line 111: @@
 <br><br>
 {| class="wikitable" style="text-align:center;"
 |+ Evaluation results on unstructured grid generation. CDT3D is compared with state-of-the-art technology AFLR v16.9.19. CDT3D’s runs are performed with 1 and 12 hardware cores. AFLR is a sequential code. This table lists the parameters of the evaluation. The sliver elements have a dihedral angle smaller than 2° or larger than 178°. The initial grid includes Delaunay tetrahedralization and Boundary Recovery. The I/O time is not included. The experiments were performed on a Dell workstation with Linux Ubuntu 12.10, using a 12-core Intel Xeon CPU X5690@3.47 GHz, and 96 GB RAM.