Adding Sulfate Inhibition crashes PFLOTRAN

[Sanskriti]

Hello everyone,

I seem to have an issue in my input file where inhibiting methanogenesis microbial reactions works correctly, but when I include sulfate (inhibit above threshold), the Newton Solver is failing. I've attached my input file (with the sulfate inhibition included in the three methanogenesis reactions) and a screenshot of my error output file below.

Would appreciate help with it!

Best,

Sanskriti

[Hammond, Glenn E]

Sanskriti,

My first guess is oscillatory behavior, but I do not see a regular pattern that oscillation typically exhibits.  Please send me your database. There are several species that are not included in the main hanford.dat database.

Thanks,

Glenn

From: pflotra...@googlegroups.com <pflotra...@googlegroups.com> on behalf of Sanskriti <sans...@g.ucla.edu>
Date: Friday, August 15, 2025 at 5:03 PM
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Subject: [pflotran-users: 8530] Adding Sulfate Inhibition crashes PFLOTRAN

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[Sanskriti]

Hello Glenn, 

Attached here. Thank you!