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Equilibrium reactions in COMSOL

Posted 8 juil. 2012, 04:45 UTC−4 Porous Media Flow, Chemical Reaction Engineering, Studies & Solvers Version 4.3 0 Replies

Nawaz Ahmad
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Hi,

I have following four reactions and want to model them as equilibrium reactions in the "transport of diluted species" interface;

r1: H2O<=>H++OH-
r2: CO2aq+H2O<=>H++HCO3-
r3: HCO3-<=>H++CO3--
r4: Na++HCO3-<=>NaHCO3aq

I need guidance about how to set equilibrium reactions within "transport of diluted species" interface. Attached is mph file to have a look how I tried to define these equilibrium reactions in the form of algebraic relations.

Solution converges for specified initial and boundary conditions. However, I am not sure about the formulation of equilibrium reactions in COMSOL.


Best Regards,

Nawaz Ahmad
KTH
0 Replies Last Post 8 juil. 2012, 04:45 UTC−4
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