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fsimonisfsimonis
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Add new blockMesh including generator
1 parent 7b2d66a commit 44e2384

2 files changed

Lines changed: 234 additions & 131 deletions

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‎channel-transport/transport-openfoam/createMesh.py‎

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#!/bin/env -S uv run --script
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# /// script
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# requires-python = ">=3.14"
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# dependencies = ["classy_blocks", "typing_extensions"]
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# ///
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# Generator script for the system/blockMeshDict
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import classy_blocks as cb
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import pathlib
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x0 = 0
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x1 = 2
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x2 = 3
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x3 = 5
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x4 = 6
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y0 = 0
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y1 = 1
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y2 = 2
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# Blocks
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def blockFor(l, r, b, t):
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return cb.Extrude(cb.Face([
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[l, b, 0],
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[r, b, 0],
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[r, t, 0],
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[l, t, 0]]), 1)
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lb = blockFor(x0, x1, y0, y1)
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lt = blockFor(x0, x1, y1, y2)
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mt = blockFor(x1, x2, y1, y2)
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rt1 = blockFor(x2, x3, y1, y2)
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rb1 = blockFor(x2, x3, y0, y1)
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rt2 = blockFor(x3, x4, y1, y2)
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rb2 = blockFor(x3, x4, y0, y1)
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# Patches
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def patch(side: str, name: str, *items):
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for i in items:
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i.set_patch(side, name)
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patch("left", "inlet", lb, lt)
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patch("right", "outlet", rb2, rt2)
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patch("back", "upperWall", lt, mt, rt1, rt2)
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patch("front", "lowerWall", lb, rb1, rb2)
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patch("right", "obstacle", lb)
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patch("front", "obstacle", mt)
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patch("left", "obstacle", rb1)
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for b in [lb, lt, mt, rt1, rt2, rb1, rb2]:
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b.set_patch(["top", "bottom"], "frontAndBack")
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# Cells
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def chop(x, *items):
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for i in items:
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i.chop(0, count=x)
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i.chop(1, count=16)
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i.chop(2, count=1)
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chop(20, lb, lt, rb1, rt1)
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chop(10, mt)
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rb2.chop(0, count=20, start_size=0.1)
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rb2.chop(1, count=16)
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rb2.chop(2, count=1)
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rt2.chop(0, count=20, start_size=0.1)
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rt2.chop(1, count=16)
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rt2.chop(2, count=1)
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# Mesh
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m = cb.Mesh()
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m.add(lb)
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m.add(lt)
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m.add(mt)
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m.add(rb1)
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m.add(rb2)
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m.add(rt1)
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m.add(rt2)
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m.modify_patch("obstacle", "wall")
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m.modify_patch("upperWall", "wall")
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m.modify_patch("lowerWall", "wall")
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m.modify_patch("frontAndBack", "empty")
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m.write(pathlib.Path(__file__).parent / "system" / "blockMeshDict")

‎channel-transport/transport-openfoam/system/blockMeshDict‎

Lines changed: 133 additions & 131 deletions
Original file line numberDiff line numberDiff line change
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/*---------------------------------------------------------------------------*\
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| ========= | |
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| \ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \ / O peration | Script: ./createMesh.py |
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| \ / A nd | Time: 2025-12-10 15:04:24.979831 |
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| \/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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object blockMeshDict;
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}
8-
9-
x0 0.;
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x1 2.;
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x2 3.;
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x3 6.;
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y0 0.;
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y1 1.;
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y2 2.;
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z0 0;
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z1 1;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
2016

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vertices
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(
23-
($x0 $y0 $z0 ) // 0
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($x1 $y0 $z0 ) // 1
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($x2 $y0 $z0 ) // 2
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($x3 $y0 $z0 ) // 3
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($x0 $y1 $z0 ) // 4
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($x1 $y1 $z0 ) // 5
29-
($x2 $y1 $z0 ) // 6
30-
($x3 $y1 $z0 ) // 7
31-
($x0 $y2 $z0 ) // 8
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($x1 $y2 $z0 ) // 9
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($x2 $y2 $z0 ) // 10
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($x3 $y2 $z0 ) // 11
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(0.00000000 0.00000000 0.00000000) // 0
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(2.00000000 0.00000000 0.00000000) // 1
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(2.00000000 1.00000000 0.00000000) // 2
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(0.00000000 1.00000000 0.00000000) // 3
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(0.00000000 0.00000000 1.00000000) // 4
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(2.00000000 0.00000000 1.00000000) // 5
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(2.00000000 1.00000000 1.00000000) // 6
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(0.00000000 1.00000000 1.00000000) // 7
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(2.00000000 2.00000000 0.00000000) // 8
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(0.00000000 2.00000000 0.00000000) // 9
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(2.00000000 2.00000000 1.00000000) // 10
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(0.00000000 2.00000000 1.00000000) // 11
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(3.00000000 1.00000000 0.00000000) // 12
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(3.00000000 2.00000000 0.00000000) // 13
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(3.00000000 1.00000000 1.00000000) // 14
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(3.00000000 2.00000000 1.00000000) // 15
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(3.00000000 0.00000000 0.00000000) // 16
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(5.00000000 0.00000000 0.00000000) // 17
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(5.00000000 1.00000000 0.00000000) // 18
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(3.00000000 0.00000000 1.00000000) // 19
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(5.00000000 0.00000000 1.00000000) // 20
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(5.00000000 1.00000000 1.00000000) // 21
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(6.00000000 0.00000000 0.00000000) // 22
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(6.00000000 1.00000000 0.00000000) // 23
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(6.00000000 0.00000000 1.00000000) // 24
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(6.00000000 1.00000000 1.00000000) // 25
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(5.00000000 2.00000000 0.00000000) // 26
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(5.00000000 2.00000000 1.00000000) // 27
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(6.00000000 2.00000000 0.00000000) // 28
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(6.00000000 2.00000000 1.00000000) // 29
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);
3550

36-
($x0 $y0 $z1 ) // 12
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($x1 $y0 $z1 ) // 13
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($x2 $y0 $z1 ) // 14
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($x3 $y0 $z1 ) // 15
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($x0 $y1 $z1 ) // 16
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($x1 $y1 $z1 ) // 17
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($x2 $y1 $z1 ) // 18
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($x3 $y1 $z1 ) // 19
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($x0 $y2 $z1 ) // 20
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($x1 $y2 $z1 ) // 21
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($x2 $y2 $z1 ) // 22
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($x3 $y2 $z1 ) // 23
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blocks
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(
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hex ( 0 1 2 3 4 5 6 7 ) ( 20 16 1 ) simpleGrading ( 1 1 1 ) // 0
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hex ( 3 2 8 9 7 6 10 11 ) ( 20 16 1 ) simpleGrading ( 1 1 1 ) // 1
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hex ( 2 12 13 8 6 14 15 10 ) ( 10 16 1 ) simpleGrading ( 1 1 1 ) // 2
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hex ( 16 17 18 12 19 20 21 14 ) ( 20 16 1 ) simpleGrading ( 1 1 1 ) // 3
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hex ( 17 22 23 18 20 24 25 21 ) ( 20 16 1 ) simpleGrading ( 0.19723533562312945 1 1 ) // 4
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hex ( 12 18 26 13 14 21 27 15 ) ( 20 16 1 ) simpleGrading ( 1 1 1 ) // 5
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hex ( 18 23 28 26 21 25 29 27 ) ( 20 16 1 ) simpleGrading ( 0.19723533562312945 1 1 ) // 6
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);
4961

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edges
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(
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);
5065

51-
// Grading
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//h1 16;
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//h2 8;
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//h3 24;
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//v1 8;
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boundary
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(
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frontAndBack
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{
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type empty;
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faces
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(
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(14 21 27 15)
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(6 14 15 10)
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(2 12 13 8)
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(18 23 28 26)
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(16 17 18 12)
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(17 22 23 18)
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(0 1 2 3)
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(12 18 26 13)
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(19 20 21 14)
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(7 6 10 11)
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(20 24 25 21)
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(3 2 8 9)
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(4 5 6 7)
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(21 25 29 27)
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);
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}
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57-
//h1 40;
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//h2 20;
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//h3 60;
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//v1 32;
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lowerWall
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{
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type wall;
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faces
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(
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(20 24 22 17)
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(4 5 1 0)
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(19 20 17 16)
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);
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}
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62-
h1 20;
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h2 10;
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h3 30;
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v1 16;
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obstacle
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{
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type wall;
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faces
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(
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(5 1 2 6)
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(19 16 12 14)
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(6 14 12 2)
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);
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}
66111

67-
blocks
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(
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hex ( 0 1 5 4 12 13 17 16 )
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($h1 $v1 1 )
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simpleGrading (1 1 1)
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inlet
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{
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type patch;
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faces
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(
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(7 3 9 11)
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(4 0 3 7)
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);
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}
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hex ( 2 3 7 6 14 15 19 18 )
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($h3 $v1 1)
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simpleGrading (1 1 1)
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upperWall
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{
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type wall;
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faces
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(
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(27 29 28 26)
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(15 27 26 13)
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(11 10 8 9)
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(10 15 13 8)
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);
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}
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hex ( 4 5 9 8 16 17 21 20 )
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($h1 $v1 1)
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simpleGrading (1 1 1)
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outlet
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{
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type patch;
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faces
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(
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(24 22 23 25)
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(25 23 28 29)
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);
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}
80143

81-
hex ( 5 6 10 9 17 18 22 21 )
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($h2 $v1 1)
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simpleGrading (1 1 1)
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);
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hex ( 6 7 11 10 18 19 23 22 )
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($h3 $v1 1 )
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simpleGrading (1 1 1)
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faces
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(
88148
);
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90-
boundary
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mergePatchPairs
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(
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inlet
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{
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type patch;
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faces
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(
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( 0 4 16 12 )
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( 4 8 20 16 )
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);
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}
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outlet
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{
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type patch;
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faces
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(
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( 3 7 19 15 )
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( 7 11 23 19 )
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);
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}
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obstacle
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{
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type wall;
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faces
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(
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( 1 5 17 13 )
116-
( 5 6 18 17 )
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( 6 2 14 18 )
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);
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}
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upperWall
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{
122-
type wall;
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faces
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(
125-
( 8 9 21 20 )
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( 9 10 22 21 )
127-
( 10 11 23 22 )
128-
);
129-
}
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lowerWall
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{
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type wall;
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faces
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(
135-
( 0 1 13 12 )
136-
( 2 3 15 14 )
137-
);
138-
}
139-
frontAndBack
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{
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type empty;
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faces
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(
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( 0 1 5 4 )
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( 2 3 7 6 )
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( 4 5 9 8 )
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( 5 6 10 9 )
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( 6 7 11 10 )
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( 12 13 17 16 )
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( 14 15 19 18 )
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( 16 17 21 20 )
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( 17 18 22 21 )
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( 18 19 23 22 )
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);
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}
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);
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scale 1;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Created with classy_blocks: https://github.com/damogranlabs/classy_blocks //
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

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