diff --git a/docs/source/methods/neutron_physics.rst b/docs/source/methods/neutron_physics.rst
index 3451ae83f..465929ba0 100644
--- a/docs/source/methods/neutron_physics.rst
+++ b/docs/source/methods/neutron_physics.rst
@@ -86,7 +86,7 @@ Elastic Scattering
------------------
Note that the multi-group mode makes no distinction between elastic or
-inelastic scattering reactions. The spceific multi-group scattering
+inelastic scattering reactions. The specific multi-group scattering
implementation is discussed in the :ref:`multi-group-scatter` section.
Elastic scattering refers to the process by which a neutron scatters off a
diff --git a/tests/regression_tests/cmfd_feed_ng/results_true.dat b/tests/regression_tests/cmfd_feed_ng/results_true.dat
index 8308e8634..707411459 100644
--- a/tests/regression_tests/cmfd_feed_ng/results_true.dat
+++ b/tests/regression_tests/cmfd_feed_ng/results_true.dat
@@ -1,5 +1,5 @@
k-combined:
-1.029540E+00 1.765356E-02
+1.029540E+00 1.765357E-02
tally 1:
1.144958E+02
1.311468E+03
@@ -93,7 +93,7 @@ tally 3:
0.000000E+00
6.939496E+01
3.014077E+02
-6.294738E-01
+6.294737E-01
2.532146E-02
4.991526E+01
1.566280E+02
@@ -129,7 +129,7 @@ tally 3:
0.000000E+00
6.885265E+01
2.965191E+02
-6.537576E-01
+6.537575E-01
2.783733E-02
4.958341E+01
1.546656E+02
diff --git a/tests/regression_tests/lattice_hex_coincident/inputs_true.dat b/tests/regression_tests/lattice_hex_coincident/inputs_true.dat
index 8d73f6374..0388a4f55 100644
--- a/tests/regression_tests/lattice_hex_coincident/inputs_true.dat
+++ b/tests/regression_tests/lattice_hex_coincident/inputs_true.dat
@@ -39,7 +39,7 @@
-
+
@@ -67,8 +67,8 @@
eigenvalue
1000
- 10
- 5
+ 5
+ 2
-0.9899494936611666 -0.9899494936611666 0.0 0.9899494936611666 0.9899494936611666 10.0
diff --git a/tests/regression_tests/lattice_hex_coincident/results_true.dat b/tests/regression_tests/lattice_hex_coincident/results_true.dat
index 8bf1c539e..1f95edaf8 100644
--- a/tests/regression_tests/lattice_hex_coincident/results_true.dat
+++ b/tests/regression_tests/lattice_hex_coincident/results_true.dat
@@ -1,2 +1,2 @@
k-combined:
-1.744283E+00 1.734930E-03
+1.910374E+00 2.685991E-02
diff --git a/tests/regression_tests/lattice_hex_coincident/test.py b/tests/regression_tests/lattice_hex_coincident/test.py
index 65786e2ec..eaea74b19 100644
--- a/tests/regression_tests/lattice_hex_coincident/test.py
+++ b/tests/regression_tests/lattice_hex_coincident/test.py
@@ -1,4 +1,5 @@
-import numpy as np
+from math import sqrt
+
import openmc
from tests.testing_harness import PyAPITestHarness
@@ -13,7 +14,7 @@ class HexLatticeCoincidentTestHarness(PyAPITestHarness):
materials.append(fuel_mat)
matrix = openmc.Material()
- matrix.set_density('atom/b-cm', 8.7742E-02)
+ matrix.set_density('atom/b-cm', 1.7742E-02)
matrix.add_element('C', 1.0, 'ao')
matrix.add_s_alpha_beta('c_Graphite')
materials.append(matrix)
@@ -94,7 +95,7 @@ class HexLatticeCoincidentTestHarness(PyAPITestHarness):
coolant_univ.add_cells(coolant_channel)
half_width = assembly_pitch # cm
- edge_length = (2./np.sqrt(3.0)) * half_width
+ edge_length = (2./sqrt(3.0)) * half_width
inf_mat = openmc.Cell()
inf_mat.fill = matrix
@@ -132,19 +133,19 @@ class HexLatticeCoincidentTestHarness(PyAPITestHarness):
settings.run_mode = 'eigenvalue'
source = openmc.Source()
- corner_dist = np.sqrt(2) * pin_rad
+ corner_dist = sqrt(2) * pin_rad
ll = [-corner_dist, -corner_dist, 0.0]
ur = [corner_dist, corner_dist, 10.0]
source.space = openmc.stats.Box(ll, ur)
source.strength = 1.0
settings.source = source
settings.output = {'summary' : False}
- settings.batches = 10
- settings.inactive = 5
+ settings.batches = 5
+ settings.inactive = 2
settings.particles = 1000
settings.seed = 22
settings.export_to_xml()
def test_lattice_hex_coincident_surf():
- harness = HexLatticeCoincidentTestHarness('statepoint.10.h5')
+ harness = HexLatticeCoincidentTestHarness('statepoint.5.h5')
harness.main()
diff --git a/tests/regression_tests/salphabeta/inputs_true.dat b/tests/regression_tests/salphabeta/inputs_true.dat
index ede96d376..29d8065cf 100644
--- a/tests/regression_tests/salphabeta/inputs_true.dat
+++ b/tests/regression_tests/salphabeta/inputs_true.dat
@@ -49,7 +49,7 @@
eigenvalue
- 1000
+ 400
5
0
diff --git a/tests/regression_tests/salphabeta/results_true.dat b/tests/regression_tests/salphabeta/results_true.dat
index fb9d2d77b..708e6e726 100644
--- a/tests/regression_tests/salphabeta/results_true.dat
+++ b/tests/regression_tests/salphabeta/results_true.dat
@@ -1,2 +1,2 @@
k-combined:
-8.757212E-01 5.686265E-02
+8.474822E-01 1.767966E-02
diff --git a/tests/regression_tests/salphabeta/test.py b/tests/regression_tests/salphabeta/test.py
index e69ada5ba..ab5305126 100644
--- a/tests/regression_tests/salphabeta/test.py
+++ b/tests/regression_tests/salphabeta/test.py
@@ -66,7 +66,7 @@ def make_model():
# Settings
model.settings.batches = 5
model.settings.inactive = 0
- model.settings.particles = 1000
+ model.settings.particles = 400
model.settings.source = openmc.Source(space=openmc.stats.Box(
[-4, -4, -4], [4, 4, 4]))
diff --git a/tests/regression_tests/triso/results_true.dat b/tests/regression_tests/triso/results_true.dat
index 0c5186e45..c8e683234 100644
--- a/tests/regression_tests/triso/results_true.dat
+++ b/tests/regression_tests/triso/results_true.dat
@@ -1,2 +1,2 @@
k-combined:
-1.701412E+00 3.180877E-02
+1.701412E+00 3.180881E-02