Changes to .prj file not applied when running CONTAM via contamxpy

[SB86]

Hello everyone,

I am currently running CONTAM simulations from Python using contamxpy, where I change various parameters programmatically.

Modifying CVF files works without any issues and the changes are properly reflected in the simulation results. However, I noticed that when I modify values in the .prj file, the changes do not seem to be applied.

For example, if I open the .prj file with a text editor (not the GUI), change the leakage values, save the file, and then run the simulation, the updated values are not reflected in the results.

Has anyone experienced a similar issue, or does anyone know why changes made directly to the .prj file might not be applied?

Thank you in advance.

SB

[William Dols]

SB,

Without knowing exactly what it is you're changing in the PRJ file, I would have to guess that you are not changing the turbulent and/or laminar flow coefficients.  

These are the values that ultimately determine the pressure/flow relationship used by ContamX during simulations. You can reverse engineer the values using ContamW as follows: modify the leakage element via ContamW, save the PRJ with a new name, and compare the original and modified PRJs via a diff tool like WinMerge. Then you could use a parametric tool (either your own or that provided by NIST here) to modify the PRJs as desired.

- Stuart