Update the uniform mesher to check if the lower and upper mesh (#869)

* Update the uniform mesher to check if the lower and upper bounds of the provided mesh are similar and then skip if they are too close. This comes into play.
terrapower · Sep 7, 2022 · 2606fa7 · 2606fa7
1 parent 9cb79cf
commit 2606fa7
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/armi/reactor/converters/uniformMesh.py b/armi/reactor/converters/uniformMesh.py
@@ -397,12 +397,14 @@ def setAssemblyStateFromOverlaps(
             # within the lower and upper bounds of the destination block.
             sourceBlocksInfo = sourceAssembly.getBlocksBetweenElevations(zLower, zUpper)
 
-            if not sourceBlocksInfo:
+            if abs(zUpper - zLower) < 1e-6 and not sourceBlocksInfo:
+                continue
+            elif not sourceBlocksInfo:
                 raise ValueError(
                     f"An error occurred when attempting to map to the "
                     f"results from {sourceAssembly} to {destinationAssembly}. "
                     f"No blocks in {sourceAssembly} exist between the axial "
-                    f"elevations of {zLower:<8.3e} cm and {zUpper:<8.3e} cm. "
+                    f"elevations of {zLower:<12.5f} cm and {zUpper:<12.5f} cm. "
                     f"This a major bug in the uniform mesh converter that should "
                     f"be reported to the developers."
                 )
@@ -411,9 +413,7 @@ def setAssemblyStateFromOverlaps(
             # source assembly within the lower and upper bounds of the destination
             # block and perform the parameter mapping.
             updatedDestVals = collections.defaultdict(float)
-
             _setNumberDensitiesFromOverlaps(destBlock, sourceBlocksInfo)
-
             for setter, getter, paramNames in [
                 (
                     BlockParamMapper.scalarParamSetter,