how to implement non-Arrhenius reaction rate
 

Hi,

I wonder how can I implement non-Arrhenius form reaction rate:confused:?

For example, the reaction rate of M+N->P+Q is expressed as k=A*f(T), in which T is temperature, and f is an arbitrary function.

Thanks for your help.

If it's not an Arrhenius type, then you cannot write it in Chemkin format. Thus, it's not possible to use a Chemkin reader. You should write your own code to calculate the reaction rates. You can still use Chemkin for your thermodynamic model.

Hello Hans,

I have the same question. Did you find an answer to your question ?
In openFoam, we have three parameters A, beta and Ta which are parameters used to describe a rate coefficient following Arrehnius type reactions. I am wondering if we should change source codes (new solver) in OF in order to be able to use non-arrhenius type rate coefficients.

Best regards