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TUT: use new 'arc' specification in several tutorials

Browse Source 
- in most cases this eliminates manually calculation of circumferential
  points.

TUT: improve parameterization of sphere blockMeshDict

- allow separate parameterization of radius, ratio of inner to outer,
  and the number of divisions in x/y/z and radial directions
This commit is contained in:
Mark Olesen
2020-10-05 12:48:54 +02:00
parent 1d08ed9be2
commit 121c69ef2e
21 changed files with 786 additions and 715 deletions
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84
tutorials/mesh/blockMesh/sphere/system/blockMeshDict
View File

@ -16,65 +16,71 @@ FoamFile
scale 1;
// Geometric parameters
outerRadius 1;
// Divisions in x/y/z directions. Can be unequal.
nx 10;
ny $nx;
nz $nx;
geometry
{
sphere
{
type sphere;
origin (0 0 0);
radius 1;
radius $outerRadius;
}
}
v 0.5773502;
mv -0.5773502;
a 0.7071067;
ma -0.7071067;
// Box sizes
vo #eval{ sqrt($outerRadius/3) };
mvo #eval{ -$vo };
vertices
(
($mv $mv $mv)
( $v $mv $mv)
( $v $v $mv)
($mv $v $mv)
($mv $mv $v)
( $v $mv $v)
( $v $v $v)
($mv $v $v)
($mvo $mvo $mvo)
( $vo $mvo $mvo)
( $vo $vo $mvo)
($mvo $vo $mvo)
($mvo $mvo $vo)
( $vo $mvo $vo)
( $vo $vo $vo)
($mvo $vo $vo)
);
blocks
(
hex (0 1 2 3 4 5 6 7) (10 10 10) simpleGrading (1 1 1)
hex (0 1 2 3 4 5 6 7) ($nx $ny $nz) grading (1 1 1)
);
edges
(
arc 0 1 (0 $ma $ma)
arc 2 3 (0 $a $ma)
arc 6 7 (0 $a $a)
arc 4 5 (0 $ma $a)
arc 0 1 origin (0 0 0)
arc 2 3 origin (0 0 0)
arc 6 7 origin (0 0 0)
arc 4 5 origin (0 0 0)
arc 0 3 ($ma 0 $ma)
arc 1 2 ($a 0 $ma)
arc 5 6 ($a 0 $a)
arc 4 7 ($ma 0 $a)
arc 0 3 origin (0 0 0)
arc 1 2 origin (0 0 0)
arc 5 6 origin (0 0 0)
arc 4 7 origin (0 0 0)
arc 0 4 ($ma $ma 0)
arc 1 5 ($a $ma 0)
arc 2 6 ($a $a 0)
arc 3 7 ($ma $a 0)
arc 0 4 origin (0 0 0)
arc 1 5 origin (0 0 0)
arc 2 6 origin (0 0 0)
arc 3 7 origin (0 0 0)
);
faces
(
project (0 4 7 3) sphere
project (2 6 5 1) sphere
project (1 5 4 0) sphere
project (3 7 6 2) sphere
project (0 3 2 1) sphere
project (4 5 6 7) sphere
project (0 4 7 3) sphere // x-min
project (1 2 6 5) sphere // x-max
project (0 1 5 4) sphere // y-min
project (3 7 6 2) sphere // y-max
project (0 3 2 1) sphere // z-min
project (4 5 6 7) sphere // z-max
);
boundary
@ -84,12 +90,12 @@ boundary
type wall;
faces
(
(0 4 7 3)
(2 6 5 1)
(1 5 4 0)
(3 7 6 2)
(0 3 2 1)
(4 5 6 7)
(0 4 7 3) // x-min
(1 2 6 5) // x-max
(0 1 5 4) // y-min
(3 7 6 2) // y-max
(0 3 2 1) // z-min
(4 5 6 7) // z-max
);
}
);