How to code chemical reaction rates?

Hello,developers!
I would like to ask if there is a tutorial on coding chemical reaction rates, I looked at the mfix manual and couldn’t find it, and I don’t know how to code it via usr_rates.f.
Looking forward to any possible answers, thanks!

https://mfix.netl.doe.gov/doc/mfix/23.2/html/model_setup/reactions/examples/index.html

From the GUI, you can load some examples. Go to the main menu>New project. You can filter out examples with/without chemistry. A good starting point is the silane pyrolysis TFM example.

When I run the silane pyrolysis TFM example, the following warning appears and I fail to build the solver, I hope you can help me to see what is wrong with this example, here is my error report, thanks!
image
silane_pyrolysis_tfm_2d_2023-10-10T105807.797758.zip (79.3 KB)

Hi, hello. I am also studying chemical reactions. Perhaps we can exchange ideas. Can you provide your email or other contact information?

This is my qq number:1979524750.

What error are you getting when you build the custom solver?


This is the error I encountered when building the solver.
Here is my bug report.
silane_pyrolysis_tfm_2d_2023-10-10T220515.394997.zip (81.4 KB)

Please search the forum before posting, these solver build failures have been discussed extensively, for example see The case run well in mfix-22.1,but has error in mfix-22.2.2 - #13 by MFiX_LYP