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axialExpansionChanger and breakFuelComponentsIntoIndividuals() are not compatible

See original GitHub issue

An internal plugin runs Block.breakFuelComponentsIntoIndividuals(), which tears apart the fuel inside of a block (with multiplicity > 1) into individual components and gives them multiplicity = 1. This appears to adversely impact downstream plugins as well as other parts of ARMI, which appear to not be prepared for this (i.e., multiplicity = 1).

An example of this breaking other code is in the axialExpansionChanger module. An internal plugin uses this module, and I observe a failure in AssemblyAxialLinkage._getLinkedComponents(). This failure occurs because _determineLinked() is returning multiple matches for a given pin by matching it with the many pins in the neighboring block(s).

Issue Analytics

State:
Created a year ago
Reactions:1
Comments:7 (7 by maintainers)

Top GitHub Comments

1reaction

kecklercommented, Jul 25, 2022

Is that a general case that we’d like ARMI to be able to model?

I would give a strong “yes”.

1reaction

kecklercommented, Jul 25, 2022

This is effectively the same as #769 , but this is a much more concrete, likely, and understandable instance of the underlying issue.

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