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Temkin-Pyzhev Type Reaction Rate using reactingFoam |
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New Member
Ege Köseoglu
Join Date: Nov 2018
Posts: 3
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Hello dear Foamers,
The usual disclaimer: if I oversaw a same or similar thread I'm very sorry but I searched for it. So, I am trying to define the ammonia decomposition reaction using reactingFoam as solver. The reaction goes likes this: 2 NH3 => 3 H2 + N2 while the rate equation can be given as: r_NH3,m = k_m * c_NH3^(a) * c_H2^(b) k_m = k_m,0 * e^(-E_A / R / T) We are using irreversibleArrheniusReaction as reaction type and I am aware that the reaction orders can be defined using "^" next to the educts. However, we require the hydrogen concentration to be included in the rate equation (which is a product) and with a negative order. Furthermore we require the rate to be limited when approaching the thermodynamical equilibrium. Is there a simple way, perhaps a tutorial case we have not checked out, to do this? I would have thought that, since it exists for so long, the Temkin-Pyzhev rate equation to have made it's way into the OpenFoam universe, but found nothing of significant relation in the web. Thanks |
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