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tjlaboss / vera-to-openmc

Convert VERA PWR benchmarks to OpenMC models
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Issue with VERA Problem 3B OpenMC inputs #7

Open johnnyliu27 opened 2 years ago

johnnyliu27 commented 2 years ago

Hi Travis, I found this repo very helpful recently and tried two cases from VERA. The Problem 3A worked as expected, but the Problem 3B generated seems something wrong. I didn’t find the Pyrex pins in the OpenMC inputs generated for 3B, and I’m not sure if it’s caused by my settings (no change in the code) or it’s a bug. Not sure if this repo is actively maintained, but if so I’ll really appreciate. Thanks! --Johnny

tjlaboss commented 2 years ago

Hey Johnny! I never thought anyone would look at this repo after 2016.

Now that you mention it, I do recall seeing that bug once before. vera-to-openmc had found multiple lattice definitions and pulled the wrong one for some reason. I can try to fix it this weekend if it's not urgent.

johnnyliu27 commented 2 years ago

That will be great if you can take a look on it this weekend! This model is a nice benchmark for research on anisotropic scattering and I'm sure many will be benefited from this. Thanks a lot!

tjlaboss commented 2 years ago

https://github.com/CASL/VERAin/blob/master/verain/Progression_Problems/3b.inp

Upon closer inspection, Problem 3 is a 3D assembly. Vera-to-OpenMC knows what lattice to use from the axial element. The pyrex is one of the INSERTS and is handled differently. I'll dive into this some more.