onufer

Component density differs if you create component through blueprints vs programatically

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Component density differs if you create component through blueprints vs programmatically . This is due to having to remember to call `applyHotHeightDensityReduction()` if you do so programmatically. This is not...

Component density does not exactly agree with 3D density

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#818 created a test comparing component density to material 3D density, and the differences are larger than expected (but still somewhat small, on the order of 0.001 g/cc).

Sample Framework materials density functions are not in alignment with ARMI Vision

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@ntouran communicated with me that the armi vision is not use use an actual density function for armi materials but rather to perturb a reference density by 1/thermalExpansion^2 to allow...

Make EOC available in the DB

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Here is a table for an example simulation with three 30-day depletion steps and a 10 day outage. Providing this as an initial strawman... see discussion below for why it...

Dont check file paths in settings when doing case suite copying

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There is a file-exists check that happens in [copyInterfaceInputs()](https://github.com/terrapower/armi/blame/main/armi/cases/case.py#L886); but this is not necessary when just copying, it is necessary when trying to run.

add capabiltiy to define assembly blueprints info in matrix form instead of just lists

14

Right now this is the way to define assembly block modifications ``` inner fuel: specifier: IC blocks: &fuel_blocks - *block_reflector - *block_fuel - *block_fuel - *block_fuel - *block_fuel - *block_fuel...

Explicit fission products with depleting structural material will cause heavy metal to be put into structural material upon new assembly creation

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steps to reproduce 1) turn on depletion for both fuel and stucture in the same block 2) `o=armi.init` 3) `o.getInterface("fissionProducts").interactBOL()` 4) `a=o.r.core.createAssemblyOfType("myType")` 5) `b= a[indexWithFuel]` 6) `for c in b:...

when we sorted assemblies it was originally meant to be useful, by ring/pos but there were internal test issues: https://github.com/terrapower/armi/pull/1305 it would probably be good to better understand this and...

Writing EOC and EOL explicitly to the DB

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## Description This PR suggests adding two new type of timesteps to write data to the ARMI DBs: one at EOC and one at EOL. So, for instance, we might...

Allowing a Snapshot to not write to DB

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## What is the change? Allow for Snapshot not to write to DB if `db: false` ## Why is the change being made? Sometimes (very rarely) snapshots are desired without...