def test_3d_internal_mpfa(self):
g = create_grids.cart_3d()
interior_node = 13
reg = ia_reg.extract_mpfa_regions(g, nodes=[interior_node])[0]
reg.mesh()
def test_2d_boundary_mpfa(self):
g = create_grids.cart_2d()
boundary_node = 3
reg = ia_reg.extract_mpfa_regions(g, nodes=[boundary_node])[0]
reg.mesh()
def test_mpfa_2d_internal_boundary_not_tip():
gb = pp.meshing.cart_grid([np.array([[1, 5], [1, 1]])], np.array([4, 2]))
g = gb.grids_of_dimension(2)[0]
# Nodes with coordinate (2, 1) are 8 and 9, we want the one connected to the
# lower half of the domain
fn_8 = g.face_nodes.tocsr()[8].indices
if np.all(g.face_centers[1, fn_8] >= 1):
node = 7
else:
node = 8
if g.cell_faces[15, 1] != 0 and g.cell_faces[16, 0] != 0:
frac_faces = [15, 16]
elif g.cell_faces[15, 5] != 0 and g.cell_faces[16, 6] != 0:
frac_faces = [22, 23]
else:
raise ValueError("Faces split inconsistent")
cells = [1, 2]
faces = [frac_faces[0], 2, frac_faces[1]]
known_surfaces = np.array([
[node, faces[0]],
[faces[0], cells[0]],
[cells[0], faces[1]],
[faces[1], cells[1]],
[cells[1], faces[2]],
[faces[2], node],
])
known_edges = np.array([[faces[0],
cells[0]], [cells[0], faces[1], cells[1]],
[cells[1], faces[2]]])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
for i in range(reg.edges.size):
if len(reg.edges[i]) == 2:
assert reg.edge_node_type[i] == ("cell", "face")
if len(reg.edges[i]) == 3:
assert reg.edge_node_type[i] == ("cell", "face", "cell")
for surf, bound_info, node_types in zip(reg.surfaces,
reg.surface_is_boundary,
reg.surface_node_type):
if "node" in node_types:
# This is a boundary surface
assert bound_info == True
assert node_types == ("face", "node")
assert surf[-1] == node
assert np.any(surf[0] == faces)
else:
assert bound_info == False
assert node_types == ("cell", "face")
def test_mpfa_2d_internal_boundary_tip():
gb = pp.meshing.cart_grid([np.array([[1, 3], [1, 1]])], np.array([4, 2]))
g = gb.grids_of_dimension(2)[0]
node = 6
cells = [1, 0, 4, 5]
if g.cell_faces[22, 1] != 0:
faces = [22, 1, 14, 6, 15]
else:
faces = [15, 1, 14, 6, 22]
surfaces = [
[faces[0], cells[0]],
[cells[0], faces[1]],
[faces[1], cells[1]],
[cells[1], faces[2]],
[faces[2], cells[2]],
[cells[2], faces[3]],
[faces[3], cells[3]],
[cells[3], faces[4]],
[faces[0], node],
[faces[4], node],
]
known_surfaces = np.array(surfaces)
known_edges = np.array([
[faces[0], cells[0]],
[cells[0], faces[1], cells[1]],
[cells[1], faces[2], cells[2]],
[cells[2], faces[3], cells[3]],
[cells[3], faces[4]],
])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
for i in range(reg.edges.size):
if len(reg.edges[i]) == 2:
assert reg.edge_node_type[i] == ("cell", "face")
if len(reg.edges[i]) == 3:
assert reg.edge_node_type[i] == ("cell", "face", "cell")
for surf, bound_info, node_types in zip(reg.surfaces,
reg.surface_is_boundary,
reg.surface_node_type):
if "node" in node_types:
# This is a boundary surface
assert bound_info == True
assert node_types == ("face", "node")
assert surf[-1] == node
assert np.any(surf[0] == faces)
else:
assert bound_info == False
assert node_types == ("cell", "face")
def test_2d_boundary_mpfa_with_fracture(self):
g = create_grids.cart_2d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[3])[0]
p = np.array([[0.0, 1.3], [1.1, 1.5]])
edges = np.array([[0], [1]])
reg.add_fractures(points=p, edges=edges)
reg.mesh()
def test_mpfa_boundary_domain_2d_with_fractures(self):
g = create_grids.cart_2d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[3])[0]
# Two crossing fractures. One internal to the domain, one crosses the boundary
p = np.array([[-0.7, 1.3, 0.1, 0.5], [1.2, 1.2, 0.9, 1.7]])
e = np.array([[0, 2], [1, 3]])
reg.add_fractures(points=p, edges=e)
local_gb = LocalGridBucketSet(2, reg)
local_gb.construct_local_buckets()
def test_3d_boundary_mpfa_with_fracture(self):
g = create_grids.cart_3d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[4])[0]
frac = pp.Fracture(
np.array([[0.0, 0.3, 0.3, 0.0], [1.1, 1.1, 1.1, 1.1],
[0.2, 0.2, 0.8, 0.8]]))
reg.add_fractures(fractures=[frac])
reg.mesh()
def test_3d_internal_mpfa_with_fracture(self):
g = create_grids.cart_3d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[13])[0]
frac = pp.Fracture(
np.array([[0.7, 1.3, 1.3, 0.7], [1.1, 1.1, 1.1, 1.1],
[0.2, 0.2, 0.8, 0.8]]))
reg.add_fractures(fractures=[frac])
reg.mesh()
def test_mpfa_internal_domain_3d_with_fractures(self):
g = create_grids.cart_3d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[13])[0]
f_1 = pp.Fracture(
np.array([[0.7, 1.4, 1.4, 0.7], [0.4, 0.4, 1.4, 1.4], [0.6, 0.6, 0.6, 0.6]])
)
f_2 = pp.Fracture(
np.array([[1.1, 1.1, 1.1, 1.1], [0.3, 1.4, 1.4, 0.3], [0.1, 0.1, 0.9, 0.9]])
)
reg.add_fractures(fractures=[f_1, f_2])
local_gb = LocalGridBucketSet(3, reg)
local_gb.construct_local_buckets()
def test_mpfa_cart_grid_2d_interior_node(self):
g = create_grids.cart_2d()
interior_node = 4
# cells = [0, 1, 2, 3]
# faces = [1, 4, 11, 12]
reg = ia_reg.extract_mpfa_regions(g, interior_node)[0]
known_edges = np.array([[0, 11, 2], [0, 1, 1], [1, 12, 3], [2, 4, 3]])
known_surfaces = np.array([[0, 1], [1, 1], [0, 11], [2, 11], [2, 4],
[3, 4], [3, 12], [1, 12]])
self.assertTrue(
test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T))
self.assertTrue(test_utils.compare_arrays(known_edges.T, reg.edges.T))
def test_mpfa_cart_grid_2d_boundary_node(self):
g = create_grids.cart_2d()
interior_node = 3
cells = [0, 2]
faces = [0, 3, 11]
reg = ia_reg.extract_mpfa_regions(g, interior_node)[0]
known_edges = np.array([[0, 0], [0, 11, 2], [2, 3]])
known_surfaces = np.array([[0, 0], [0, 11], [2, 11], [2, 3], [0, 3],
[3, 3]])
self.assertTrue(
test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T))
self.assertTrue(
test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T))
for i in range(reg.edges.size):
if len(reg.edges[i]) == 2:
self.assertTrue(reg.edge_node_type[i] == ("cell", "face"))
if len(reg.edges[i]) == 3:
self.assertTrue(reg.edge_node_type[i] == ("cell", "face",
"cell"))
for surf, bound_info, node_types in zip(reg.surfaces,
reg.surface_is_boundary,
reg.surface_node_type):
if "node" in node_types:
# This is a boundary surface
self.assertTrue(bound_info == True)
self.assertTrue(node_types == ("face", "node"))
self.assertTrue(surf[-1] == interior_node)
self.assertTrue(np.any(surf[0] == faces))
else:
self.assertTrue(bound_info == False)
self.assertTrue(node_types == ("cell", "face"))
def test_mpfa_cart_grid_3d_boundary_node(self):
g = create_grids.cart_3d()
interior_node = 3
# cells = [0, 2]
# faces = [0, 3, 14, 24, 26]
# other_nodes = [0, 4, 6, 12]
reg = ia_reg.extract_mpfa_regions(g, interior_node)[0]
known_edges = np.array([[0, 0], [0, 24], [0, 14, 2], [2, 3], [2, 26]])
known_surfaces = np.array([
[0, 0, 0],
[0, 24, 0],
[0, 24, 4],
[0, 14, 4],
[2, 26, 4],
[2, 14, 4],
[0, 0, 12],
[0, 14, 12],
[2, 14, 12],
[2, 3, 12],
[2, 3, 6],
[2, 26, 6], # after this, boundary surfaces
[0, 0, 3],
[0, 12, 3],
[3, 6, 3],
[3, 12, 3],
[24, 0, 3],
[24, 4, 3],
[26, 4, 3],
[26, 6, 3],
])
self.assertTrue(
test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T))
self.assertTrue(
test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T))
def test_mpfa_3d_internal_boundary_on_domain_boundary():
gb = pp.meshing.cart_grid(
[np.array([[1, 2, 2, 1], [1, 1, 1, 1], [0, 0, 1, 1]])], [3, 2, 2])
g = gb.grids_of_dimension(3)[0]
cf = g.cell_faces
node = 5
edge_nodes = [1, 9, 17, 4, 6]
cells = [0, 1, 3, 4]
faces_x = [1, 5]
if cf[20, 1] != 0:
faces_y = [19, 20, g.num_faces - 1]
else:
faces_y = [19, g.num_faces - 1, 20]
faces_z = [34, 35, 37, 38]
known_surfaces = np.array([
[cells[0], faces_y[0], edge_nodes[3]],
[cells[0], faces_z[0], edge_nodes[3]],
[cells[2], faces_y[0], edge_nodes[3]],
[cells[2], faces_z[2], edge_nodes[3]], # left
[cells[1], faces_y[1], edge_nodes[4]],
[cells[1], faces_z[1], edge_nodes[4]],
[cells[3], faces_y[2], edge_nodes[4]],
[cells[3], faces_z[3], edge_nodes[4]], # right
[cells[0], faces_x[0], edge_nodes[2]],
[cells[1], faces_x[0], edge_nodes[2]],
[cells[0], faces_y[0], edge_nodes[2]],
[cells[1], faces_y[1], edge_nodes[2]],
[cells[2], faces_x[1], edge_nodes[2]],
[cells[3], faces_x[1], edge_nodes[2]],
[cells[2], faces_y[0], edge_nodes[2]],
[cells[3], faces_y[2], edge_nodes[2]], # top
[faces_z[0], edge_nodes[0], node],
[faces_z[0], edge_nodes[3], node],
[faces_z[1], edge_nodes[0], node],
[faces_z[1], edge_nodes[4], node],
[faces_z[2], edge_nodes[1], node],
[faces_z[2], edge_nodes[3], node],
[faces_z[3], edge_nodes[1], node],
[faces_z[3], edge_nodes[4], node],
[cells[0], faces_x[0], edge_nodes[0]],
[cells[0], faces_z[0], edge_nodes[0]],
[cells[1], faces_x[0], edge_nodes[0]],
[cells[1], faces_z[1], edge_nodes[0]], # front
[cells[2], faces_x[1], edge_nodes[1]],
[cells[2], faces_z[2], edge_nodes[1]],
[cells[3], faces_x[1], edge_nodes[1]],
[cells[3], faces_z[3], edge_nodes[1]], # back
[faces_y[1], edge_nodes[2], node],
[faces_y[1], edge_nodes[4], node],
[faces_y[2], edge_nodes[2], node],
[faces_y[2], edge_nodes[4], node],
])
known_edges = np.array([
[cells[0], faces_x[0], cells[1]],
[cells[2], faces_x[1], cells[3]],
[cells[0], faces_y[0], cells[2]],
[cells[1], faces_y[1]],
[cells[3], faces_y[2]],
[cells[0], faces_z[0]],
[cells[1], faces_z[1]],
[cells[2], faces_z[2]],
[cells[3], faces_z[3]],
])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
def test_mpfa_3d_internal_boundary_node_on_fracture_corner():
gb = pp.meshing.cart_grid(
[np.array([[1, 2, 2, 1], [1, 1, 1, 1], [1, 1, 2, 2]])], [2, 2, 2])
g = gb.grids_of_dimension(3)[0]
cf = g.cell_faces
node = 13
edge_nodes = [10, 16, 4, 12, 14, 22]
cells = np.arange(g.num_cells)
faces_x = np.array([1, 4, 7, 10])
fy = [14, 15, 20]
if cf[21, 5] != 0:
fy += [21, 36]
else:
fy += [36, 21]
faces_y = np.array(fy)
faces_z = [28, 29, 30, 31]
known_surfaces = np.array([
[cells[0], faces_x[0], edge_nodes[2]],
[cells[0], faces_y[0], edge_nodes[2]],
[cells[1], faces_x[0], edge_nodes[2]],
[cells[1], faces_y[1], edge_nodes[2]],
[cells[2], faces_x[1], edge_nodes[2]],
[cells[2], faces_y[0], edge_nodes[2]],
[cells[3], faces_x[1], edge_nodes[2]],
[cells[3], faces_y[1], edge_nodes[2]], # bottom
[cells[4], faces_x[2], edge_nodes[5]],
[cells[4], faces_y[2], edge_nodes[5]],
[cells[5], faces_x[2], edge_nodes[5]],
[cells[5], faces_y[3], edge_nodes[5]],
[cells[6], faces_x[3], edge_nodes[5]],
[cells[6], faces_y[2], edge_nodes[5]],
[cells[7], faces_x[3], edge_nodes[5]],
[cells[7], faces_y[4], edge_nodes[5]], # Top
[cells[0], faces_y[0], edge_nodes[3]],
[cells[0], faces_z[0], edge_nodes[3]],
[cells[2], faces_y[0], edge_nodes[3]],
[cells[2], faces_z[2], edge_nodes[3]],
[cells[4], faces_y[2], edge_nodes[3]],
[cells[4], faces_z[0], edge_nodes[3]],
[cells[6], faces_y[2], edge_nodes[3]],
[cells[6], faces_z[2], edge_nodes[3]], # left
[cells[1], faces_y[1], edge_nodes[4]],
[cells[1], faces_z[1], edge_nodes[4]],
[cells[3], faces_y[1], edge_nodes[4]],
[cells[3], faces_z[3], edge_nodes[4]],
[cells[5], faces_y[3], edge_nodes[4]],
[cells[5], faces_z[1], edge_nodes[4]],
[cells[7], faces_y[4], edge_nodes[4]],
[cells[7], faces_z[3], edge_nodes[4]], # right
[cells[0], faces_x[0], edge_nodes[0]],
[cells[1], faces_x[0], edge_nodes[0]],
[cells[0], faces_z[0], edge_nodes[0]],
[cells[1], faces_z[1], edge_nodes[0]],
[cells[4], faces_x[2], edge_nodes[0]],
[cells[5], faces_x[2], edge_nodes[0]],
[cells[4], faces_z[0], edge_nodes[0]],
[cells[5], faces_z[1], edge_nodes[0]], # front
[cells[2], faces_x[1], edge_nodes[1]],
[cells[3], faces_x[1], edge_nodes[1]],
[cells[2], faces_z[2], edge_nodes[1]],
[cells[3], faces_z[3], edge_nodes[1]],
[cells[6], faces_x[3], edge_nodes[1]],
[cells[7], faces_x[3], edge_nodes[1]],
[cells[6], faces_z[2], edge_nodes[1]],
[cells[7], faces_z[3], edge_nodes[1]], # back
[faces_y[3], edge_nodes[4], node],
[faces_y[3], edge_nodes[5], node],
[faces_y[4], edge_nodes[4], node],
[faces_y[4], edge_nodes[5], node], # internal
])
known_edges = np.array([
[cells[0], faces_x[0], cells[1]],
[cells[2], faces_x[1], cells[3]],
[cells[4], faces_x[2], cells[5]],
[cells[6], faces_x[3], cells[7]],
[cells[0], faces_z[0], cells[4]],
[cells[1], faces_z[1], cells[5]],
[cells[2], faces_z[2], cells[6]],
[cells[3], faces_z[3], cells[7]],
[cells[0], faces_y[0], cells[2]],
[cells[1], faces_y[1], cells[3]],
[cells[4], faces_y[2], cells[6]],
[cells[5], faces_y[3]],
[cells[7], faces_y[4]],
])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
def test_mpfa_3d_interal_boundary_node_on_fracture_edge():
gb = pp.meshing.cart_grid(
[np.array([[0, 2, 2, 0], [1, 1, 1, 1], [1, 1, 2, 2]])], [2, 2, 2])
g = gb.grids_of_dimension(3)[0]
fn = g.face_nodes.tocsr()
cf = g.cell_faces
node = 13
edge_nodes = [10, 16, 4, 12, 14]
if np.all(g.face_centers[1, fn[23].indices] <= 1):
edge_nodes.append(23)
edge_nodes.append(24)
else:
edge_nodes.append(24)
edge_nodes.append(23)
cells = np.arange(g.num_cells)
faces_x = np.array([1, 4, 7, 10])
fy = [14, 15]
if cf[19, 4] != 0:
assert cf[20, 5] != 0
fy += [20, 21, 36, 37]
else:
fy += [36, 37, 20, 21]
faces_y = np.array(fy)
faces_z = [28, 29, 30, 31]
known_surfaces = np.array([
[cells[0], faces_x[0], edge_nodes[2]],
[cells[0], faces_y[0], edge_nodes[2]],
[cells[1], faces_x[0], edge_nodes[2]],
[cells[1], faces_y[1], edge_nodes[2]],
[cells[2], faces_x[1], edge_nodes[2]],
[cells[2], faces_y[0], edge_nodes[2]],
[cells[3], faces_x[1], edge_nodes[2]],
[cells[3], faces_y[1], edge_nodes[2]], # bottom
[cells[4], faces_x[2], edge_nodes[5]],
[cells[4], faces_y[2], edge_nodes[5]],
[cells[5], faces_x[2], edge_nodes[5]],
[cells[5], faces_y[3], edge_nodes[5]],
[cells[6], faces_x[3], edge_nodes[6]],
[cells[6], faces_y[4], edge_nodes[6]],
[cells[7], faces_x[3], edge_nodes[6]],
[cells[7], faces_y[5], edge_nodes[6]], # Top
[cells[0], faces_y[0], edge_nodes[3]],
[cells[0], faces_z[0], edge_nodes[3]],
[cells[2], faces_y[0], edge_nodes[3]],
[cells[2], faces_z[2], edge_nodes[3]],
[cells[4], faces_y[2], edge_nodes[3]],
[cells[4], faces_z[0], edge_nodes[3]],
[cells[6], faces_y[4], edge_nodes[3]],
[cells[6], faces_z[2], edge_nodes[3]], # left
[cells[1], faces_y[1], edge_nodes[4]],
[cells[1], faces_z[1], edge_nodes[4]],
[cells[3], faces_y[1], edge_nodes[4]],
[cells[3], faces_z[3], edge_nodes[4]],
[cells[5], faces_y[3], edge_nodes[4]],
[cells[5], faces_z[1], edge_nodes[4]],
[cells[7], faces_y[5], edge_nodes[4]],
[cells[7], faces_z[3], edge_nodes[4]], # right
[cells[0], faces_x[0], edge_nodes[0]],
[cells[1], faces_x[0], edge_nodes[0]],
[cells[0], faces_z[0], edge_nodes[0]],
[cells[1], faces_z[1], edge_nodes[0]],
[cells[4], faces_x[2], edge_nodes[0]],
[cells[5], faces_x[2], edge_nodes[0]],
[cells[4], faces_z[0], edge_nodes[0]],
[cells[5], faces_z[1], edge_nodes[0]], # front
[cells[2], faces_x[1], edge_nodes[1]],
[cells[3], faces_x[1], edge_nodes[1]],
[cells[2], faces_z[2], edge_nodes[1]],
[cells[3], faces_z[3], edge_nodes[1]],
[cells[6], faces_x[3], edge_nodes[1]],
[cells[7], faces_x[3], edge_nodes[1]],
[cells[6], faces_z[2], edge_nodes[1]],
[cells[7], faces_z[3], edge_nodes[1]], # back
[faces_y[2], edge_nodes[3], node],
[faces_y[2], edge_nodes[5], node],
[faces_y[3], edge_nodes[4], node],
[faces_y[3], edge_nodes[5], node],
[faces_y[4], edge_nodes[3], node],
[faces_y[4], edge_nodes[6], node],
[faces_y[5], edge_nodes[4], node],
[faces_y[5], edge_nodes[6], node], # internal
])
known_edges = np.array([
[cells[0], faces_x[0], cells[1]],
[cells[2], faces_x[1], cells[3]],
[cells[4], faces_x[2], cells[5]],
[cells[6], faces_x[3], cells[7]],
[cells[0], faces_z[0], cells[4]],
[cells[1], faces_z[1], cells[5]],
[cells[2], faces_z[2], cells[6]],
[cells[3], faces_z[3], cells[7]],
[cells[0], faces_y[0], cells[2]],
[cells[1], faces_y[1], cells[3]],
[cells[4], faces_y[2]],
[cells[5], faces_y[3]],
[cells[6], faces_y[4]],
[cells[7], faces_y[5]],
])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
def test_mpfa_3d_internal_boundary_node_internal_to_fracture():
gb = pp.meshing.cart_grid(
[np.array([[0, 2, 2, 0], [1, 1, 1, 1], [0, 0, 2, 2]])], [2, 2, 2])
g = gb.grids_of_dimension(3)[0]
fn = g.face_nodes.tocsr()
if np.all(g.face_centers[1, fn[17].indices] <= 1):
node = 17
else:
node = 18
edge_nodes = [13]
edge_pairs = [[5, 6], [15, 16], [19, 20], [29, 30]]
for e in edge_pairs:
if np.all(g.face_centers[1, fn[e[0]].indices] <= 1):
edge_nodes.append(e[0])
else:
edge_nodes.append(e[1])
cells = [0, 1, 4, 5]
faces_x = [1, 7]
faces_z = [28, 29]
faces_y = []
pairs = [[14, 36], [15, 37], [20, 38], [21, 39]]
for i, p in enumerate(pairs):
if g.cell_faces[p[0], cells[i]] != 0:
faces_y.append(p[0])
elif g.cell_faces[p[1], cells[i]] != 0:
faces_y.append(p[1])
else:
raise ValueError()
known_surfaces = np.array([
[cells[0], faces_x[0], edge_nodes[0]],
[cells[0], faces_z[0], edge_nodes[0]],
[cells[1], faces_x[0], edge_nodes[0]],
[cells[1], faces_z[1], edge_nodes[0]],
[cells[2], faces_x[1], edge_nodes[0]],
[cells[2], faces_z[0], edge_nodes[0]],
[cells[3], faces_x[1], edge_nodes[0]],
[cells[3], faces_z[1], edge_nodes[0]], # end of y=0 surfaces
[cells[0], faces_y[0], edge_nodes[1]],
[cells[0], faces_x[0], edge_nodes[1]],
[cells[1], faces_y[1], edge_nodes[1]],
[cells[1], faces_x[0], edge_nodes[1]], # end of z=0.5 surface
[cells[2], faces_y[2], edge_nodes[4]],
[cells[2], faces_x[1], edge_nodes[4]],
[cells[3], faces_y[3], edge_nodes[4]],
[cells[3], faces_x[1], edge_nodes[4]], # end of z=1.5 surface
[cells[0], faces_y[0], edge_nodes[2]],
[cells[0], faces_z[0], edge_nodes[2]],
[cells[2], faces_y[2], edge_nodes[2]],
[cells[2], faces_z[0], edge_nodes[2]], # end of x=0.5 surface
[cells[1], faces_y[1], edge_nodes[3]],
[cells[1], faces_z[1], edge_nodes[3]],
[cells[3], faces_y[3], edge_nodes[3]],
[cells[3], faces_z[1], edge_nodes[3]], # end of x=1.5 surface
[faces_y[0], edge_nodes[1], node],
[faces_y[0], edge_nodes[2], node],
[faces_y[1], edge_nodes[1], node],
[faces_y[1], edge_nodes[3], node],
[faces_y[2], edge_nodes[4], node],
[faces_y[2], edge_nodes[2], node],
[faces_y[3], edge_nodes[4], node],
[faces_y[3], edge_nodes[3], node],
])
known_edges = np.array([
[cells[0], faces_x[0], cells[1]],
[cells[2], faces_x[1], cells[3]],
[cells[0], faces_z[0], cells[2]],
[cells[1], faces_z[1], cells[3]],
[cells[0], faces_y[0]],
[cells[1], faces_y[1]],
[cells[2], faces_y[2]],
[cells[3], faces_y[3]],
])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
def test_mpfa_2d_internal_boundary_L_intersection():
gb = pp.meshing.cart_grid(
[
np.array([[1, 3], [1, 1]]),
np.array([[1, 1], [0, 1]]),
],
np.array([4, 2]),
)
g = gb.grids_of_dimension(2)[0]
nodes = [7, 8]
cf = g.cell_faces.tocsc()
fn = g.face_nodes.tocsr()
cn = g.cell_nodes().tocsr()
cells = [cn[ni].indices for ni in nodes]
fn = g.face_nodes.tocsr()
cf = g.cell_faces.tocsc()
faces = []
for n, c in zip(nodes, cells):
f = cf[:, c].indices
loc_faces = np.intersect1d(fn[n].indices, f)
if loc_faces.size == 4:
ymin = np.argmin(g.face_centers[1, loc_faces])
xmin = np.argmin(g.face_centers[0, loc_faces])
ymax = np.argmax(g.face_centers[1, loc_faces])
xmax = np.argmax(g.face_centers[0, loc_faces])
loc_faces = loc_faces[[ymin, xmin, ymax, xmax]]
faces.append(loc_faces)
for ind in range(len(nodes)):
sz = cells[ind].size
surf = [[faces[ind][i], cells[ind][i]] for i in range(sz)]
surf += [[cells[ind][i], faces[ind][i + 1]] for i in range(sz)]
surf += [[faces[ind][0], nodes[ind]]]
surf += [[faces[ind][-1], nodes[ind]]]
known_surfaces = np.array(surf)
if sz == 1:
known_edges = np.array([
[cells[ind][0], faces[ind][0]],
[cells[ind][0], faces[ind][1]],
])
else:
known_edges = np.array([
[cells[ind][0], faces[ind][0]],
[cells[ind][0], faces[ind][1], cells[ind][1]],
[cells[ind][1], faces[ind][2], cells[ind][2]],
[cells[ind][2], faces[ind][3]],
])
reg = ia_reg.extract_mpfa_regions(g, nodes[ind])[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T,
reg.edges.T)
for i in range(reg.edges.shape[0]):
if len(reg.edges[i]) == 2:
assert reg.edge_node_type[i] == ("cell", "face")
if len(reg.edges[i]) == 3:
assert reg.edge_node_type[i] == ("cell", "face", "cell")
for surf, bound_info, node_types in zip(reg.surfaces,
reg.surface_is_boundary,
reg.surface_node_type):
if "node" in node_types:
# This is a boundary surface
assert bound_info == True
assert node_types == ("face", "node")
assert surf[-1] == nodes[ind]
assert np.any(surf[0] == faces[ind])
else:
assert bound_info == False
assert node_types == ("cell", "face")
def _interaction_regions(self, g):
for ni in range(g.num_nodes):
yield ia_reg.extract_mpfa_regions(g, ni)[0]
def test_mpfa_boundary_domain_2d(self):
g = create_grids.cart_2d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[3])[0]
local_gb = LocalGridBucketSet(2, reg)
local_gb.construct_local_buckets()
def test_regions_different_grids(self):
# Run through all prepared simple grids, check that the creation does not break
for g in create_grids.create_grids():
_ = ia_reg.extract_tpfa_regions(g)
_ = ia_reg.extract_mpfa_regions(g)
def test_mpfa_cart_grid_3d_internal_node(self):
g = create_grids.cart_3d()
interior_node = 13
# cells = [0, 1, 2, 3, 4, 5, 6, 7, 8]
# faces = [1, 4, 7, 10, 14, 15, 20, 21, 28, 29, 30, 31]
# other_nodes = [4, 10, 12, 14, 16, 22]
reg = ia_reg.extract_mpfa_regions(g, interior_node)[0]
known_surfaces = np.asarray([
[0, 1, 4],
[0, 1, 10],
[1, 1, 4],
[1, 1, 10],
[0, 14, 4],
[0, 14, 12],
[2, 14, 4],
[2, 14, 12],
[2, 4, 4],
[2, 4, 16],
[3, 4, 4],
[3, 4, 16],
[1, 15, 4],
[1, 15, 14],
[3, 15, 4],
[3, 15, 14], # Done with all lower faces
[4, 7, 10],
[4, 7, 22],
[5, 7, 10],
[5, 7, 22],
[4, 20, 12],
[4, 20, 22],
[6, 20, 12],
[6, 20, 22],
[5, 21, 14],
[5, 21, 22],
[7, 21, 14],
[7, 21, 22],
[6, 10, 16],
[6, 10, 22],
[7, 10, 16],
[7, 10, 22], # Done with all upper faces
[0, 28, 10],
[0, 28, 12],
[4, 28, 10],
[4, 28, 12],
[1, 29, 10],
[1, 29, 14],
[5, 29, 10],
[5, 29, 14],
[2, 30, 12],
[2, 30, 16],
[6, 30, 12],
[6, 30, 16],
[3, 31, 14],
[3, 31, 16],
[7, 31, 14],
[7, 31, 16],
])
known_edges = np.array([
[0, 1, 1],
[0, 14, 2],
[2, 4, 3],
[1, 15, 3],
[4, 7, 5],
[4, 20, 6],
[5, 21, 7],
[6, 10, 7],
[0, 28, 4],
[1, 29, 5],
[2, 30, 6],
[3, 31, 7],
])
self.assertTrue(
test_utils.compare_arrays(known_surfaces.T,
reg.surfaces.T,
sort=False))
self.assertTrue(
test_utils.compare_arrays(known_edges.T, reg.edges.T, sort=False))
def test_mpfa_internal_domain_3d(self):
g = create_grids.cart_3d()
reg = ia_reg.extract_mpfa_regions(g, nodes=[13])[0]
local_gb = LocalGridBucketSet(3, reg)
local_gb.construct_local_buckets()
def test_mpfa_3d_internal_boundary_crossing_internal_interior():
f1 = np.array([[0, 2, 2, 0], [1, 1, 1, 1], [1, 1, 3, 3]])
f2 = np.array([[1, 1, 1, 1], [0, 2, 2, 0], [2, 2, 3, 3]])
gb = pp.meshing.cart_grid([f1, f2], [2, 2, 3])
g = gb.grids_of_dimension(3)[0]
cn = g.cell_nodes().tocsr()
cells = [4, 5, 8, 9]
if np.all(g.cell_centers[1, cn[23].indices] < 1):
node = 23
else:
node = 24
edge_nodes = [13, 19]
if np.all(g.cell_centers[1, cn[21].indices] < 1):
edge_nodes.append(21)
else:
edge_nodes.append(22)
if np.all(g.cell_centers[1, cn[25].indices] < 1):
edge_nodes.append(25)
else:
edge_nodes.append(26)
# Top-most edge-coordinate has four coordinates, need two of them
for ni in range(36, 39):
if cells[2] in cn[ni].indices:
edge_nodes.append(ni)
break
for ni in range(36, 39):
if cells[3] in cn[ni].indices:
edge_nodes.append(ni)
break
# Cross our fingers this is the correct face indices after splitting
faces_x = [7, 56, 13]
faces_y = [52, 53, 54, 55]
faces_z = [44, 45]
known_surfaces = np.array([
[cells[0], faces_y[0], edge_nodes[0]],
[cells[0], faces_x[0], edge_nodes[0]],
[cells[1], faces_y[1], edge_nodes[0]],
[cells[1], faces_x[0], edge_nodes[0]], # bottom
[cells[0], faces_z[0], edge_nodes[2]],
[cells[0], faces_y[0], edge_nodes[2]],
[cells[2], faces_z[0], edge_nodes[2]],
[cells[2], faces_y[2], edge_nodes[2]], # left
[cells[1], faces_y[1], edge_nodes[3]],
[cells[1], faces_z[1], edge_nodes[3]],
[cells[3], faces_y[3], edge_nodes[3]],
[cells[3], faces_z[1], edge_nodes[3]], # right
[cells[2], faces_x[1], edge_nodes[4]],
[cells[2], faces_y[2], edge_nodes[4]],
[cells[3], faces_x[2], edge_nodes[5]],
[cells[3], faces_y[3], edge_nodes[5]], # top
[cells[0], faces_x[0], edge_nodes[1]],
[cells[0], faces_z[0], edge_nodes[1]],
[cells[1], faces_x[0], edge_nodes[1]],
[cells[1], faces_z[1], edge_nodes[1]],
[cells[2], faces_x[1], edge_nodes[1]],
[cells[2], faces_z[0], edge_nodes[1]],
[cells[3], faces_x[2], edge_nodes[1]],
[cells[3], faces_z[1], edge_nodes[1]], # front
[faces_y[0], edge_nodes[0], node],
[faces_y[0], edge_nodes[2], node],
[faces_y[1], edge_nodes[0], node],
[faces_y[1], edge_nodes[3], node],
[faces_y[2], edge_nodes[2], node],
[faces_y[2], edge_nodes[4], node],
[faces_y[3], edge_nodes[3], node],
[faces_y[3], edge_nodes[5], node], # back
[edge_nodes[1], faces_x[1], node],
[edge_nodes[1], faces_x[2], node],
[edge_nodes[4], faces_x[1], node],
[edge_nodes[5], faces_x[2], node],
])
known_edges = np.array([
[cells[0], faces_x[0], cells[1]],
[cells[0], faces_z[0], cells[2]],
[cells[1], faces_z[1], cells[3]],
[cells[0], faces_y[0]],
[cells[1], faces_y[1]],
[cells[2], faces_y[2]],
[cells[3], faces_y[3]],
[cells[2], faces_x[1]],
[cells[3], faces_x[2]],
])
reg = ia_reg.extract_mpfa_regions(g, node)[0]
assert test_utils.compare_arrays(known_surfaces.T, reg.surfaces.T)
assert test_utils.compare_arrays_varying_size(known_edges.T, reg.edges.T)
