| /*--------------------------------*- C++ -*----------------------------------*\ |
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Website: https://openfoam.org |
| \\ / A nd | Version: dev |
| \\/ M anipulation | |
| \*---------------------------------------------------------------------------*/ |
| FoamFile |
| { |
| format ascii; |
| class dictionary; |
| object blockMeshDict; |
| } |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // |
|
|
| vertices |
| ( |
| // (truncated) Cone |
| (-1 0 0) (0 -1 0) (1 0 0) (0 1 0) |
| (0 -2 2) (2 0 2) (0 2 2) (-2 0 2) |
|
|
| // (quarter) Torus |
| (3 0 0) (4 -1 0) (5 0 0) (4 1 0) |
| (6 0 3) (6 -1 2) (6 0 1) (6 1 2) |
|
|
| // Sphere |
| (7 -1 0) (7 1 0) (7 1 2) (7 -1 2) |
| (9 -1 0) (9 1 0) (9 1 2) (9 -1 2) |
| ); |
|
|
| blocks |
| ( |
| hex (1 0 4 5 2 3 7 6) cone (9 10 11) simpleGrading (1 1 1) |
| hex (8 9 10 11 12 13 14 15) torus (6 6 12) simpleGrading (1 1 1) |
| hex (16 17 18 19 20 21 22 23) sphere (10 10 10) simpleGrading (1 1 1) |
| ); |
|
|
| // A cone geometry is needed to project the edges to because we twist the block |
| // through the height of the cone. It would not be needed otherwise. |
| geometry |
| { |
| cone |
| { |
| type triSurface; |
| file "cone.obj"; |
| } |
| } |
|
|
| edges |
| ( |
| // (truncated) Cone |
| arc 0 1 90 (0 0 1) |
| arc 1 2 90 (0 0 1) |
| arc 2 3 90 (0 0 1) |
| arc 3 0 90 (0 0 1) |
|
|
| arc 4 5 90 (0 0 1) |
| arc 5 6 90 (0 0 1) |
| arc 6 7 90 (0 0 1) |
| arc 7 4 90 (0 0 1) |
|
|
| project 0 4 (cone) |
| project 1 5 (cone) |
| project 2 6 (cone) |
| project 3 7 (cone) |
|
|
| // (quarter) Torus |
| arc 8 9 90 (0 0 1) |
| arc 9 10 90 (0 0 1) |
| arc 10 11 90 (0 0 1) |
| arc 11 8 90 (0 0 1) |
|
|
| arc 12 13 90 (1 0 0) |
| arc 13 14 90 (1 0 0) |
| arc 14 15 90 (1 0 0) |
| arc 15 12 90 (1 0 0) |
|
|
| arc 8 12 90 (0 1 0) |
| arc 9 13 90 (0 1 0) |
| arc 10 14 90 (0 1 0) |
| arc 11 15 90 (0 1 0) |
|
|
| // Sphere |
| arc 16 17 70.52877936550932 (1 0 -1) |
| arc 17 18 70.52877936550932 (1 1 0) |
| arc 18 19 70.52877936550932 (1 0 1) |
| arc 19 16 70.52877936550932 (1 -1 0) |
|
|
| arc 20 21 70.52877936550932 (1 0 1) |
| arc 21 22 70.52877936550932 (1 -1 0) |
| arc 22 23 70.52877936550932 (1 0 -1) |
| arc 23 20 70.52877936550932 (1 1 0) |
|
|
| arc 16 20 70.52877936550932 (0 -1 1) |
| arc 17 21 70.52877936550932 (0 -1 -1) |
| arc 18 22 70.52877936550932 (0 1 -1) |
| arc 19 23 70.52877936550932 (0 1 1) |
| ); |
|
|
| faces |
| ( |
| // (truncated) Cone. This is exact, and it also appears to be insensitive |
| // to the direction of sweeping, which is somewhat surprising given that |
| // the block also twists 90 degrees over the height of the cone. |
| sweep (0 1 5 4) 1 |
| sweep (1 2 6 5) 1 |
| sweep (2 3 7 6) 1 |
| sweep (3 0 4 7) 1 |
|
|
| // (quarter) Torus. This is exact, but it is also sensitive to the |
| // direction of sweeping. If the minor edges are swept (the more intuitive |
| // option) then the rotation factor must be 1. If the major edges are swept |
| // (the less intuitive option) then the rotation factor must be 0. The |
| // swept edges are the first and third edges of the faces listed. |
| sweep (8 9 13 12) 1 |
| sweep (9 10 14 13) 1 |
| sweep (10 11 15 14) 1 |
| sweep (11 8 12 15) 1 |
| // ... or ... |
| /* |
| sweep (9 13 12 8) 0 |
| sweep (10 14 13 9) 0 |
| sweep (11 15 14 10) 0 |
| sweep (8 12 15 11) 0 |
| */ |
|
|
| // Sphere. This is not exact. The positions are better than the basic |
| // algorithm, but the projection still falls short of the sphere surface. |
| // That's because, unlike the other two shapes, the "rows" of points in one |
| // of the faces of the sphere are not geometrically similar (i.e., just |
| // rotated and scaled). The angle spanned by the arc varies with each row. |
| sweep (16 17 18 19) 1 |
| sweep (16 17 21 20) 1 |
| sweep (17 18 22 21) 1 |
| sweep (18 19 23 22) 1 |
| sweep (19 16 20 23) 1 |
| sweep (20 21 22 23) 1 |
| ); |
|
|
| defaultPatch |
| { |
| name walls; |
| type wall; |
| } |
|
|
| boundary |
| (); |
|
|
| // ************************************************************************* // |
|
|
