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added an arc #1

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21 changes: 17 additions & 4 deletions example.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@

# geometries
radius_x = 0.19
arc_x = 0.13
length_z = 1.1

# prepare ofblockmeshdicthelper.BlockMeshDict instance to
Expand All @@ -26,8 +27,10 @@
basevs = [
Vertex(0, 0, 0, 'v0'),
Vertex(radius_x, 0, 0, 'v1'),
Vertex(radius_x, 0, length_z, 'v2'),
Vertex(radius_x, 1, length_z, 'v2'),
Vertex(0, 0, length_z, 'v3')]
# vertices for the arc
arcvs = [Vertex(arc_x, 0, length_z/2.0, 'varc')]

# rotate wedgedegree/2 around z axis
# rotated vertices are named with '-y' or '+y' suffix.
Expand All @@ -38,10 +41,13 @@
for v in basevs:
bmd.add_vertex(v.x*cosd, -v.x*sind, v.z, v.name+'-y')
bmd.add_vertex(v.x*cosd, v.x*sind, v.z, v.name+'+y')
for v in arcvs:
bmd.add_vertex(v.x*cosd, -v.x*sind, v.z, v.name+'-y')
bmd.add_vertex(v.x*cosd, v.x*sind, v.z, v.name+'+y')

# v0+y and v3+y have same coordinate as v0-y and v3-y, respectively.
bmd.reduce_vertex('v0-y', 'v0+y')
bmd.reduce_vertex('v3-y', 'v3+y')
#bmd.reduce_vertex('v0-y', 'v0+y')
#bmd.reduce_vertex('v3-y', 'v3+y')


# utility to to generate vertex names
Expand All @@ -66,7 +72,14 @@ def vnamegen(x0z0, x1z0, x1z1, x0z1):
bmd.add_boundary('patch', 'outlet', [b0.face('zp')])
bmd.add_boundary('empty', 'axis', [b0.face('xm')])

bmd.add_arcedge(('v2-y', 'v3-y'), 'arc', 'varc-y')
bmd.add_arcedge(('v2+y', 'v3+y'), 'arc', 'varc+y')

# prepare for output
bmd.assign_vertexid()
# output
print(bmd.format())
#print(bmd.format())string = bmd.format()
string = bmd.format()
f = open("blockMeshDict", "w")
f.write(string)
f.close