Dear all,
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
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