Model ID: 515
This example shows 1D steady-state multicomponent gas diffusion. The diffusion of three gases in a Stefan tube is modeled in 1D. The steady-state mass fraction profiles are calculated. It exemplfies in a simple way manipulation of multi-species diffusion. It also shows how this can influence convective movement. The model is compared to an article with experimental results.
|Steady-state mole fractions of: acetone (dotted), methanol (dashed), and air (solid line), in the Stefan tube according to the COMSOL Multiphysics model as solved using Maxwell-Stefan diffusivities.|