Plasma chemistry assumption

Hello everybody

I am modelling a plasma actuator used for aerospace application (boundary layer separation control, airfoil leading edge flow separation control).

I am having a trouble in finding any or sufficient literature on assuming chemistry for my plasma. I have to specify the plasma chemistry to the plasma module in order to further my study.

Keeping in view that my actuator is for aeronautical application, can anyone suggest me a literature to read or a plasma chemistry that i can assume? , so that my model is simple or of medium complexity but reliable.

I will be extremely thankful for the help.

Thank you

Best regards
Zaid