[louiza]

Hello all,

I would like to modeling arc discharge in argon (ideal gaz) with 6 reactions and 3 species, for this I need to solving the transport equation with source term via UDF that includes (construction species , destruction species) .

I wrote the source term = the ensemble of creation and destruction of species in an analytical form, I get a set of equations (N) with N incconu.

[dAr/dt]=k3*[ne]*[Ar]+k4*[ne]*[Ar*]+.........
[dAr*/dt]=k2*[ne]*[Ar]-k4*[ne]*[Ar*]-.........
[dAr/dt], [dAr*/dt]: molar concentration of atom of argon, and excited atom of argon.
k2, k3 : rate reaction2 and 3 depend of electronc temperature.
k4 : rate reaction (4) is constant.
The reaction rates depending on the electron temperature and there are some constant.

How do I solve this set of equations and if you have any UDF examples for species equations please let me send.


please help me

Thank you!