Reply To: To implement the transport (convection-diffusion) equation by UDF

[chuminhkhue]

Sorry for this omission,
it is a laminar model.
I model the transport of the particles using a convection-diffusion equation due to the motion of the mixture, composed of the primary phase and the second phase.
Assume that the particles are influenced by the motion of both the primary phase and the secondary phase.
A mixture of domains contains particles.