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Adding calculation and testing of pin power for CASL VERA 2D examples #36

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13 changes: 13 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -1,3 +1,7 @@
# Python bytecode cache
__pycache__/
*.pyc

# Prerequisites
*.d

Expand Down Expand Up @@ -31,3 +35,12 @@
*.exe
*.out
*.app

# CASL VERA Problem 2 -- ephemeral per-run outputs (regenerated by every run of <case>.py; see
# CASL_VERA_2D/README.md's Testing section for what's a committed baseline vs. run output)
CASL_VERA_2D/*/power.txt
CASL_VERA_2D/*/power_raw.txt
CASL_VERA_2D/*/keff.txt
CASL_VERA_2D/*/mesh_*.vtu
CASL_VERA_2D/*/mesh_*.pvtu
CASL_VERA_2D/*/*.restart.h5
62 changes: 25 additions & 37 deletions CASL_VERA_2D/2A/2A.py
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Expand Up @@ -20,8 +20,11 @@
PowerIterationKEigenSolver,
CMFDAcceleration,
)
from pyopensn.logvol import LogicalVolume, RCCLogicalVolume
from pyopensn.fieldfunc import FieldFunctionInterpolationVolume
from pyopensn.logvol import RCCLogicalVolume
from pyopensn.post import VolumePostprocessor

sys.path.append(str(Path(__file__).resolve().parent.parent))
from casl_pin_power import compute_pin_powers # noqa: E402 -- needs sys.path set up first


def find_repo_root(start):
Expand Down Expand Up @@ -89,9 +92,12 @@ def make_spatial_partitioner(filename):
'it-clad', 'it-water-in', 'it-water-out',
'moderator', 'water_outside']

FUEL_XS_NAMES = {"fuel"} # only fissionable materials carry "kappa-fission" data in the MGXS file

for name in h5_mat_names:
xs_dict[name] = MultiGroupXS()
xs_dict[name].LoadFromOpenMC(xs_filepath, name, 294.0)
extra_xs_names = ["kappa-fission"] if name in FUEL_XS_NAMES else []
xs_dict[name].LoadFromOpenMC(xs_filepath, name, 294.0, extra_xs_names=extra_xs_names)
xs_list = np.append(xs_list, xs_dict[name])

block_ids = [i for i in range(0, len(xs_list))]
Expand Down Expand Up @@ -168,18 +174,8 @@ def make_spatial_partitioner(filename):
k_solver.Execute()

keff = k_solver.GetEigenvalue()
fflist = phys.GetScalarFluxFieldFunction()

pitch = 1.26
num_cells = 17
half_water_gap = 0.04


def compute_cell_center(i, j):
x_center = (i - 1) * pitch - (num_cells / 2) * pitch + half_water_gap
y_center = (j - 1) * pitch - (num_cells / 2) * pitch + half_water_gap
return x_center, y_center


your_files = os.getcwd()

Expand Down Expand Up @@ -214,34 +210,26 @@ def count_frequencies(data):

csv_size = lattice_csv.shape[0]

val_table = np.zeros([num_cells, num_cells])

fuel_xs = xs_dict["fuel"]
sig_f = np.array(fuel_xs.sigma_f)


for i in range(1, num_cells + 1):
for j in range(1, num_cells + 1):
if lattice_csv[i - 1, j - 1] == 'fu':
x_center, y_center = compute_cell_center(i, j)
my_lv = RCCLogicalVolume(r=0.4060, x0=x_center, y0=y_center, z0=-1.0, vz=2.0)
label_to_block_xs = {"fu": (h5_mat_names.index("fuel"), xs_dict["fuel"])}
pin_positions_csv = casl_mesh_dir / ('pin_positions_' + casename + '.csv')
val_table = compute_pin_powers(
phys, RCCLogicalVolume, VolumePostprocessor, pin_positions_csv, label_to_block_xs,
lattice_csv.shape,
)

val = 0
for g in range(0, num_groups):
ffi = FieldFunctionInterpolationVolume()
ffi.SetOperationType('sum')
ffi.SetLogicalVolume(my_lv)
ffi.AddFieldFunction(fflist[g])
ffi.Execute()
val_g = ffi.GetValue()
val += val_g * sig_f[g]
val_table[i - 1][j - 1] = val
# Raw (pre-normalization) values, saved for regression testing (see check_pin_powers.py) --
# unlike the peak-normalized power.txt below, these are directly comparable run-to-run: no
# division by a run-dependent "which pin is the max" statistic that a tiny amount of solve
# noise can flip between two near-tied pins, disproportionately amplifying that noise.
if rank == 0:
np.savetxt("power_raw.txt", val_table)

maxes = np.zeros([num_cells])
for i in range(0, num_cells):
maxes[i] = max(val_table[:, i])
val_max = max(maxes)

np.savetxt("power.txt", val_table / val_max)
with open("keff.txt", "w") as file:
file.write(str(keff))
if rank == 0:
np.savetxt("power.txt", val_table / val_max)
with open("keff.txt", "w") as file:
file.write(str(keff))
17 changes: 17 additions & 0 deletions CASL_VERA_2D/2A/power_baseline.txt
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9.009787239507925927e-01 8.955435236581035241e-01 8.997449958810571635e-01 9.085233661121394633e-01 9.176014817465728557e-01 9.265071759024978704e-01 9.244392420002396360e-01 9.247968894865996603e-01 9.288528574009163874e-01 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00
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17 changes: 17 additions & 0 deletions CASL_VERA_2D/2A/power_raw_baseline.txt
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1.653735839445057392e+09 1.643759593303341627e+09 1.651471346099305391e+09 1.667583941299556971e+09 1.684246715658376217e+09 1.700593012423530340e+09 1.696797344094347239e+09 1.697453801844522953e+09 1.704898483195190668e+09 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00 0.000000000000000000e+00
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