When OpenMKM is installed and compiled by following the instructions, the omkm executable is generated. On Linux add the omkm executable directory to the system path if it is not in the system path. On Windows, click on StartMenu->OpenMKM->”OpenMKM CmdLine” to open a new command line prompt with OpenMKM installation folder added to the system path. The omkm executable requires two input files, which are specified as arguments in the command line. The first argument is the name of yaml file specifying the reactor model parameters, and the second argument is the name of Cantera XML input file, which provides the definitions of species, reactions, interactions. Instructions on how to write or generate your own input files can be found on Input section. For the purpose of this tutorial, you can grab these files from any of the simulations folders in the <OpenMKM_ROOT>/examples/model_simul folder. Once the two files are in the simulation folder, run the simulation with the following command:
omkm <rctr.yaml> <input.xml>
After execution, OpenMKM produces numerous output files listing various quantities of interest, such as mole fractions, surface coverages either as a function of time for batch and CSTR’s or as a function of distance from inlet for PFR. Details about the output files generated by OpenMKM and their information is given in Output section in the navigation panel.