[hajott]

Hello,
is it possible, to express some species concentration in reactingFoam directly as
X_s=k_s X_k X_l (1)
instead of its production rate
w_k = \sum_i \nu_{k,i} q_i? (2)

Here, X_k and X_l are "ordinary" species concentrations that are solved according to their chemical reaction rate expressions (2).
The "steady state" species concentration X_s is assumed to be proportional to some ordinary species concentrations and again appears in the rate expressions for the ordinary species.

Is it possible to express such a "steady state" species (1) in a Chemkin input file?

Regards