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-rw-r--r--ldc_3d.py22
1 files changed, 14 insertions, 8 deletions
diff --git a/ldc_3d.py b/ldc_3d.py
index a41f0ae..b0ed568 100644
--- a/ldc_3d.py
+++ b/ldc_3d.py
@@ -55,13 +55,17 @@ def generate_moment_plots(lattice, moments):
plt.savefig("result/ldc_3d_%02d.png" % i, bbox_inches='tight', pad_inches=0)
-def cavity(geometry, x, y, z):
- if x == 1 or y == 1 or z == 1 or x == geometry.size_x-2 or y == geometry.size_y-2:
- return 2
- elif z == geometry.size_z-2:
- return 3
- else:
- return 1
+def get_cavity_material_map(geometry):
+ return [
+ (lambda x, y, z: x > 0 and x < geometry.size_x-1 and
+ y > 0 and y < geometry.size_y-1 and
+ z > 0 and z < geometry.size_z-1, 1), # bulk fluid
+ (lambda x, y, z: x == 1 or y == 1 or z == 1 or x == geometry.size_x-2 or y == geometry.size_y-2, 2), # walls
+ (lambda x, y, z: z == geometry.size_z-2, 3), # lid
+ (lambda x, y, z: x == 0 or x == geometry.size_x-1 or
+ y == 0 or y == geometry.size_y-1 or
+ z == 0 or z == geometry.size_z-1, 0) # ghost cells
+ ]
boundary = """
if ( m == 2 ) {
@@ -94,7 +98,9 @@ lattice = Lattice(
boundary_src = boundary)
-lattice.setup_geometry(cavity)
+lattice.apply_material_map(
+ get_cavity_material_map(lattice.geometry))
+lattice.sync_material()
print("Starting simulation using %d cells...\n" % lattice.geometry.volume)