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Coupling Lam. Flow and Transport of diluted species in both directions
Posted 2017年1月3日 GMT-5 13:09 Fluid & Heat, Modeling Tools & Definitions Version 5.2 0 Replies
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my 2D-model combines laminar flow and transport of diluted species. I understand solving the laminar flow part first and then use this solution via flow coupling for the transport of diluted species (1 species with concenrtation c).
Now I want to implement an outflow, which depends in the local concetration of the diluted species (e.g. const[m^3/mol]*c). Everytime I´m trying to solve the calculation I ge the error message:
"Undefined value found.
- Detail: NaN or Inf found when solving linear system using PARDISO.
- Feature: Stationary Solver 1 (sol1/s1)"
Is it possible to couple to two physics parallel instead of one after another? In my imagination COMSOL computes the convection and diffusion in infinitesimal steps over x to use the new claculated local concentration and flow profile each time.
If needed I can provide some examples.
Looking forward to your answers,
Kristina
Hello Kristina B
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