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-rw-r--r--ldc_2d.py18
1 files changed, 10 insertions, 8 deletions
diff --git a/ldc_2d.py b/ldc_2d.py
index 5fae3fe..8869c35 100644
--- a/ldc_2d.py
+++ b/ldc_2d.py
@@ -29,13 +29,13 @@ def generate_moment_plots(lattice, moments):
plt.imshow(velocity, origin='lower', cmap=plt.get_cmap('seismic'))
plt.savefig("result/ldc_2d_%02d.png" % i, bbox_inches='tight', pad_inches=0)
-def cavity(geometry, x, y):
- if x == 1 or y == 1 or x == geometry.size_x-2:
- return 2
- elif y == geometry.size_y-2:
- return 3
- else:
- return 1
+def get_cavity_material_map(geometry):
+ return [
+ (lambda x, y: x > 0 and x < geometry.size_x-1 and y > 0 and y < geometry.size_y-1, 1), # bulk fluid
+ (lambda x, y: x == 1 or y == 1 or x == geometry.size_x-2, 2), # left, right, bottom walls
+ (lambda x, y: y == geometry.size_y-2, 3), # lid
+ (lambda x, y: x == 0 or x == geometry.size_x-1 or y == 0 or y == geometry.size_y-1, 0) # ghost cells
+ ]
boundary = Template("""
if ( m == 2 ) {
@@ -72,7 +72,9 @@ 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)