Experts.
I want to use mfix to simulate fluidized bed combustion. I found that the software cannot run while studying its built-in examples. Is there someone who understands how to explain and solve it? Thank you very much.
For chemistry, you need to write the reaction rates in Fortran for the solver to use. So, you need to build (compile) a custom solver for that tutorial.
This warning is telling you that you might want to use those fortran files in the project directory, so compiling a custom solver with those files in the project directory will actually use those files and your warning will go away.
Please see
https://mfix.netl.doe.gov/doc/mfix/23.1/html/solver/build-custom.html#build-custom
for more information