Update TRISO unit tests

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amandalund 2018-11-19 21:56:36 -06:00
parent 9b00c61a03
commit b7b410975b

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@ -12,52 +12,84 @@ import scipy.spatial
_RADIUS = 0.1
_PACKING_FRACTION = 0.35
_SHAPES = ['rectangular_prism', 'cylinder', 'sphere', 'spherical_shell']
_VOLUMES = [1.**3, 1.*pi*1.**2, 4/3*pi*1.**3, 4/3*pi*(1.**3 - 0.5**3)]
_PARAMS = [
{'shape': 'rectangular_prism', 'volume': 1**3},
{'shape': 'x_cylinder', 'volume': 1*pi*1**2},
{'shape': 'y_cylinder', 'volume': 1*pi*1**2},
{'shape': 'z_cylinder', 'volume': 1*pi*1**2},
{'shape': 'sphere', 'volume': 4/3*pi*1**3},
{'shape': 'spherical_shell', 'volume': 4/3*pi*(1**3 - 0.5**3)}
]
@pytest.fixture(scope='module')
@pytest.fixture(scope='module', params=_PARAMS)
def container(request):
return request.getfixturevalue(request.param)
return request.param
@pytest.fixture(scope='module')
def centers(request):
container = request.getfixturevalue(request.param)
return openmc.model.pack_spheres(radius=_RADIUS, region=container,
def centers(request, container):
return request.getfixturevalue('centers_' + container['shape'])
@pytest.fixture(scope='module')
def centers_rectangular_prism():
min_x = openmc.XPlane(x0=0)
max_x = openmc.XPlane(x0=1)
min_y = openmc.YPlane(y0=0)
max_y = openmc.YPlane(y0=1)
min_z = openmc.ZPlane(z0=0)
max_z = openmc.ZPlane(z0=1)
region = +min_x & -max_x & +min_y & -max_y & +min_z & -max_z
return openmc.model.pack_spheres(radius=_RADIUS, region=region,
pf=_PACKING_FRACTION, initial_pf=0.2)
@pytest.fixture(scope='module')
def rectangular_prism():
min_x = openmc.XPlane(x0=-0.5)
max_x = openmc.XPlane(x0=0.5)
min_y = openmc.YPlane(y0=-0.5)
max_y = openmc.YPlane(y0=0.5)
min_z = openmc.ZPlane(z0=-0.5)
max_z = openmc.ZPlane(z0=0.5)
return +min_x & -max_x & +min_y & -max_y & +min_z & -max_z
def centers_x_cylinder():
cylinder = openmc.XCylinder(R=1, y0=1, z0=2)
min_x = openmc.XPlane(x0=0)
max_x = openmc.XPlane(x0=1)
region = +min_x & -max_x & -cylinder
return openmc.model.pack_spheres(radius=_RADIUS, region=region,
pf=_PACKING_FRACTION, initial_pf=0.2)
@pytest.fixture(scope='module')
def cylinder():
cylinder = openmc.ZCylinder(R=1.)
min_z = openmc.ZPlane(z0=-0.5)
max_z = openmc.ZPlane(z0=0.5)
return +min_z & -max_z & -cylinder
def centers_y_cylinder():
cylinder = openmc.YCylinder(R=1, x0=1, z0=2)
min_y = openmc.YPlane(y0=0)
max_y = openmc.YPlane(y0=1)
region = +min_y & -max_y & -cylinder
return openmc.model.pack_spheres(radius=_RADIUS, region=region,
pf=_PACKING_FRACTION, initial_pf=0.2)
@pytest.fixture(scope='module')
def sphere():
sphere = openmc.Sphere(R=1.)
return -sphere
def centers_z_cylinder():
cylinder = openmc.ZCylinder(R=1, x0=1, y0=2)
min_z = openmc.ZPlane(z0=0)
max_z = openmc.ZPlane(z0=1)
region = +min_z & -max_z & -cylinder
return openmc.model.pack_spheres(radius=_RADIUS, region=region,
pf=_PACKING_FRACTION, initial_pf=0.2)
@pytest.fixture(scope='module')
def spherical_shell():
sphere = openmc.Sphere(R=1.)
inner_sphere = openmc.Sphere(R=0.5)
return -sphere & +inner_sphere
def centers_sphere():
sphere = openmc.Sphere(R=1, x0=1, y0=2, z0=3)
region = -sphere
return openmc.model.pack_spheres(radius=_RADIUS, region=region,
pf=_PACKING_FRACTION, initial_pf=0.2)
@pytest.fixture(scope='module')
def centers_spherical_shell():
sphere = openmc.Sphere(R=1, x0=1, y0=2, z0=3)
inner_sphere = openmc.Sphere(R=0.5, x0=1, y0=2, z0=3)
region = -sphere & +inner_sphere
return openmc.model.pack_spheres(radius=_RADIUS, region=region,
pf=_PACKING_FRACTION, initial_pf=0.2)
@pytest.fixture(scope='module')
@ -68,7 +100,6 @@ def triso_universe():
return univ
@pytest.mark.parametrize('centers', _SHAPES, indirect=True)
def test_overlap(centers):
"""Check that none of the spheres in the packed configuration overlap."""
# Create KD tree for quick nearest neighbor search
@ -82,57 +113,83 @@ def test_overlap(centers):
assert d_min > 2*_RADIUS or d_min == pytest.approx(2*_RADIUS)
@pytest.mark.parametrize('centers,shape', zip(_SHAPES, _SHAPES),
indirect=['centers'])
def test_contained(centers, shape):
def test_contained_rectangular_prism(centers_rectangular_prism):
"""Make sure all spheres are entirely contained within the domain."""
if shape == 'rectangular_prism':
x = np.amax(abs(centers)) + _RADIUS
assert x < 0.5 or x == pytest.approx(0.5)
elif shape == 'cylinder':
r = max(np.linalg.norm(centers[:,0:2], axis=1)) + _RADIUS
z = max(abs(centers[:,2])) + _RADIUS
assert r < 1. or r == pytest.approx(1.)
assert z < 0.5 or z == pytest.approx(0.5)
elif shape == 'sphere':
r = max(np.linalg.norm(centers, axis=1)) + _RADIUS
assert r < 1. or r == pytest.approx(1.)
elif shape == 'spherical_shell':
d = np.linalg.norm(centers, axis=1)
r_max = max(d) + _RADIUS
r_min = min(d) - _RADIUS
assert r_max < 1. or r_max == pytest.approx(1.)
assert r_min > 0.5 or r_min == pytest.approx(0.5)
d_max = np.amax(centers_rectangular_prism) + _RADIUS
d_min = np.amin(centers_rectangular_prism) - _RADIUS
assert d_max < 1 or d_max == pytest.approx(1)
assert d_min > 0 or d_min == pytest.approx(0)
@pytest.mark.parametrize('centers,volume', zip(_SHAPES, _VOLUMES),
indirect=['centers'])
def test_packing_fraction(centers, volume):
def test_contained_x_cylinder(centers_x_cylinder):
"""Make sure all spheres are entirely contained within the domain."""
d = np.linalg.norm(centers_x_cylinder[:,[1,2]] - [1, 2], axis=1)
r_max = max(d) + _RADIUS
x_max = max(centers_x_cylinder[:,0]) + _RADIUS
x_min = min(centers_x_cylinder[:,0]) - _RADIUS
assert r_max < 1 or r_max == pytest.approx(1)
assert x_max < 1 or x_max == pytest.approx(1)
assert x_min > 0 or x_min == pytest.approx(0)
def test_contained_y_cylinder(centers_y_cylinder):
"""Make sure all spheres are entirely contained within the domain."""
d = np.linalg.norm(centers_y_cylinder[:,[0,2]] - [1, 2], axis=1)
r_max = max(d) + _RADIUS
y_max = max(centers_y_cylinder[:,1]) + _RADIUS
y_min = min(centers_y_cylinder[:,1]) - _RADIUS
assert r_max < 1 or r_max == pytest.approx(1)
assert y_max < 1 or y_max == pytest.approx(1)
assert y_min > 0 or y_min == pytest.approx(0)
def test_contained_z_cylinder(centers_z_cylinder):
"""Make sure all spheres are entirely contained within the domain."""
d = np.linalg.norm(centers_z_cylinder[:,[0,1]] - [1, 2], axis=1)
r_max = max(d) + _RADIUS
z_max = max(centers_z_cylinder[:,2]) + _RADIUS
z_min = min(centers_z_cylinder[:,2]) - _RADIUS
assert r_max < 1 or r_max == pytest.approx(1)
assert z_max < 1 or z_max == pytest.approx(1)
assert z_min > 0 or z_min == pytest.approx(0)
def test_contained_sphere(centers_sphere):
"""Make sure all spheres are entirely contained within the domain."""
d = np.linalg.norm(centers_sphere - [1, 2, 3], axis=1)
r_max = max(d) + _RADIUS
assert r_max < 1 or r_max == pytest.approx(1)
def test_contained_spherical_shell(centers_spherical_shell):
"""Make sure all spheres are entirely contained within the domain."""
d = np.linalg.norm(centers_spherical_shell - [1, 2, 3], axis=1)
r_max = max(d) + _RADIUS
r_min = min(d) - _RADIUS
assert r_max < 1 or r_max == pytest.approx(1)
assert r_min > 0.5 or r_min == pytest.approx(0.5)
def test_packing_fraction(container, centers):
"""Check that the actual PF is close to the requested PF."""
pf = len(centers) * 4/3 * pi *_RADIUS**3 / volume
pf = len(centers) * 4/3 * pi *_RADIUS**3 / container['volume']
assert pf == pytest.approx(_PACKING_FRACTION, rel=1e-2)
@pytest.mark.parametrize('container', _SHAPES, indirect=True)
def test_num_spheres(container):
def test_num_spheres():
"""Check that the function returns the correct number of spheres"""
centers = openmc.model.pack_spheres(
radius=_RADIUS, region=container, num_spheres=50
radius=_RADIUS, region=-openmc.Sphere(R=1), num_spheres=50
)
assert len(centers) == 50
def test_triso_lattice(triso_universe, rectangular_prism):
centers = openmc.model.pack_spheres(
radius=_RADIUS, region=rectangular_prism, pf=0.2
)
trisos = [openmc.model.TRISO(_RADIUS, triso_universe, c) for c in centers]
def test_triso_lattice(triso_universe, centers_rectangular_prism):
trisos = [openmc.model.TRISO(_RADIUS, triso_universe, c)
for c in centers_rectangular_prism]
lower_left = np.array((-.5, -.5, -.5))
upper_right = np.array((.5, .5, .5))
lower_left = np.array((0, 0, 0))
upper_right = np.array((1, 1, 1))
shape = (3, 3, 3)
pitch = (upper_right - lower_left)/shape
background = openmc.Material()
@ -146,25 +203,25 @@ def test_container_input(triso_universe):
# Invalid container shape
with pytest.raises(ValueError):
centers = openmc.model.pack_spheres(
radius=_RADIUS, region=+openmc.Sphere(R=1.), num_spheres=100
radius=_RADIUS, region=+openmc.Sphere(R=1), num_spheres=100
)
def test_packing_fraction_input(sphere):
def test_packing_fraction_input():
# Provide neither packing fraction nor number of spheres
with pytest.raises(ValueError):
centers = openmc.model.pack_spheres(
radius=_RADIUS, region=sphere
radius=_RADIUS, region=-openmc.Sphere(R=1)
)
# Specify a packing fraction that is too high for CRP
with pytest.raises(ValueError):
centers = openmc.model.pack_spheres(
radius=_RADIUS, region=sphere, pf=1.
radius=_RADIUS, region=-openmc.Sphere(R=1), pf=1
)
# Specify a packing fraction that is too high for RSP
with pytest.raises(ValueError):
centers = openmc.model.pack_spheres(
radius=_RADIUS, region=sphere, pf=0.5, initial_pf=0.4
radius=_RADIUS, region=-openmc.Sphere(R=1), pf=0.5, initial_pf=0.4
)