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2D axisymmetric membrane reactor
Posted 25 oct. 2013, 17:44 UTC−4 Computational Fluid Dynamics (CFD), Chemical Reaction Engineering, Electrochemistry, Geometry, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3b 0 Replies
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I am trying to model 3 equilibrium reactions in a membrane reactor. The plan was to make a 0D model to obtain the equilibrium concentrations and then implement those reactions in a 2D model but I have been having issues.
I used the "generate space-dependent model" tool to sync the re interface with the other physics (transport of concentrated species and laminar flow). I have been using the MaxwellStefan_ReactingBoundary and membrane_hda files as guides but try as I may I cannot get the simulation to converge.
I have one study, 0D Kinetics, that works for re using Automatic Highly Nonlinear (nonlinear method) and Generalized Alpha (volume stepping method). Then I try to solve for the spatial effects in another study, 2D Effects.
Is this the right approach? Can someone please tell me what I'm doing wrong? Also, what determines which species show in the Flux node of chcs? One last question, why does Comsol not recognize the root.mod1.re.w0_H2 variable?
Sorry about all the questions. Even the slightest help would be hugely appreciated, thank you.
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Hello Camilo Corredor
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